KR101689117B1 - Apparatus for using separable module in spouting 3d printing material - Google Patents

Apparatus for using separable module in spouting 3d printing material Download PDF

Info

Publication number
KR101689117B1
KR101689117B1 KR1020150046977A KR20150046977A KR101689117B1 KR 101689117 B1 KR101689117 B1 KR 101689117B1 KR 1020150046977 A KR1020150046977 A KR 1020150046977A KR 20150046977 A KR20150046977 A KR 20150046977A KR 101689117 B1 KR101689117 B1 KR 101689117B1
Authority
KR
South Korea
Prior art keywords
tube
path
raw material
providing tube
path providing
Prior art date
Application number
KR1020150046977A
Other languages
Korean (ko)
Other versions
KR20160118607A (en
Inventor
이재설
도현옥
서준석
최두원
한진수
박현호
문주영
Original Assignee
(주)하이비젼시스템
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)하이비젼시스템 filed Critical (주)하이비젼시스템
Priority to KR1020150046977A priority Critical patent/KR101689117B1/en
Publication of KR20160118607A publication Critical patent/KR20160118607A/en
Application granted granted Critical
Publication of KR101689117B1 publication Critical patent/KR101689117B1/en

Links

Images

Classifications

    • B29C67/0085—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)

Abstract

The present invention relates to a module separating type 3D printer raw material extruding apparatus capable of preventing the inconvenience of replacing a nozzle unit due to deterioration clogging and thus leakage of filament melt, and in a module separating type 3D printer raw material extruding apparatus, And a nozzle unit for extruding the raw material; A path providing tube connected to the cylindrical fastening structure of the nozzle unit to form a raw material supply path; And an adhesion preventive pipe inserted into the path providing tube to prevent adhesion of the raw material in the path providing tube, wherein the nozzle portion, the path providing tube and the adhesion preventing tube are separable from each other, The attachment preventing tube is inserted into the lower portion of the path providing tube.

Description

TECHNICAL FIELD [0001] The present invention relates to a three-dimensional (3D) printer extrusion apparatus,

The present invention relates to a module separating type 3D printer raw material extruding device capable of preventing the inconvenience of replacing a nozzle part due to deterioration clogging and thus leakage of filament melt.

Techniques for forming a 3D structure include a method in which a thermoplastic plastic is extruded and laminated, a laser beam is projected in a water tank (vat) containing a liquid photocurable resin, and a molding in a water tank is formed in a layer In this method, the water tank is lowered by the layer thickness every time the material is heated, and then the laser is injected again to form a three-dimensional structure. In the liquid state, the light is projected onto the photo- A method of forming a three-dimensional structure by solidifying a layer, and a method of forming a three-dimensional structure by extruding a color ink and a curing material (binder) in a liquid state from a nozzle of a print head into a powder raw material using an inkjet printer principle. Among them, a method of extruding and laminating thermoplastic plastics is to laminate one identical liquefying raw material (plastic, wax, metal, etc.) in a designated range to complete a three-dimensional structure. A nozzle assembly using such a technique called FFF (Fused Filament Fabrication) or FDM (Fused Deposition Modeling) is a method in which the raw material 10 is supplied to the nozzle 30 by rotation of the roller 20 as shown in FIG. And the raw material is melted and extruded by high heat. However, in the conventional nozzle assembly, when the deterioration clogging, that is, the printing operation for a long time is continued, the high temperature heat required for filament melting is applied not only to the temperature rising position but also to the filament inserting portion, There is a problem that clogging of the nozzle is caused. Therefore, according to the conventional apparatus, deterioration clogging occurs during prolonged use, the filament melt escapes from the nozzle assembly, and the nozzle unit must be replaced after the entire apparatus is disassembled for the maintenance work.

The present invention has been proposed in order to solve the problem caused in the nozzle assembly using the above-described conventional FFF (Fused Filament Fabrication) or FDM (Fused Deposition Modeling) method, and the nozzle part is prevented from being deteriorated due to the deterioration clogging and the leakage of the filament melt. And to provide a module separating type 3D printer raw material extruding device capable of preventing the inconvenience that must be replaced.

According to a first aspect of the present invention, there is provided a device for extruding a 3D printer raw material, comprising: a nozzle unit having a cylindrical fastening structure and for extruding a raw material; A path providing tube connected to the cylindrical fastening structure of the nozzle unit to form a raw material supply path; And an adhesion preventive pipe inserted into the path providing tube to prevent adhesion of the raw material to the path providing tube, wherein the nozzle portion, the path providing tube and the adhesion preventing tube are separable from each other, The attachment preventing tube is inserted into the lower portion of the path providing tube.

Wherein the path-providing tube has a step formed inside the upper portion to prevent the attachment preventing pipe from falling to the upper portion.

The apparatus may further include a connection portion providing a first cylindrical passage structure in which the path providing tube is inserted into the upper portion and the nozzle portion is inserted in the lower portion to connect the path providing tube and the nozzle portion, And the inner wall of the first cylindrical passage structure is formed with a threaded hole that matches the lower outer wall of the cylindrical fastening structure.

Further, it is preferable to further include a first material leakage preventing rubber ring having a ring-shaped structure made of a rubber material, wherein an upper portion of the cylindrical fastening structure is connected to the tube for providing a path, And a groove-like structure in which the first material leakage-preventing rubber ring is seated is formed at the boundary of the upper part of the cylindrical fastening structure.

In addition, it is preferable that the second raw material leakage preventing rubber ring having a ring-shaped structure of rubber material is further included, and the second raw material leakage preventing rubber ring is seated on a portion of the upper portion of the cylindrical fastening structure adjacent to the path providing tube side And a groove-like structure is formed.

The bush further includes a bush for mounting the path-providing tube to the three-dimensional printer main body, and the bushing has a second cylindrical passage structure into which the path-providing tube can be inserted.

In addition, a threaded hole is formed in the upper part of the cylindrical shape, and the lower part is coupled to surround the outside of the path-providing tube, and a concentric crystal is formed at the boundary between the upper part formed with the threaded hole and the lower part mounted outside the path- Wherein the inner wall of the second cylindrical passage structure is formed with a threaded hole matched with a threaded hole of the concentric crystal assembly.

Embodiments of the disclosed technique may have effects that include the following advantages. It should be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, since the embodiments of the disclosed technology are not meant to include all such embodiments.

The apparatus for extruding a modular 3D printer according to the present invention can prevent deterioration of clogging by inserting a Teflon hose into the nozzle assembly from below and prevent leaking of the filament melt by using a rubber ring, It is possible to compensate for the disadvantage that the nozzle part needs to be replaced after the entire device is disassembled due to clogging and leakage of the filament melt.

1 is a view showing a 3D printer raw material extrusion apparatus according to the prior art.
FIGS. 2A and 2B are views showing an apparatus for extruding a modular 3D printer raw material according to an embodiment of the present invention.
FIG. 3 is a view for explaining in detail a raw material extruding apparatus for a module separable 3D printer according to an embodiment of the present invention.
FIG. 4 is a detailed view illustrating a nozzle unit mounted in a module separating type 3D printer material extruding apparatus according to an embodiment of the present invention.
5 is a detailed view illustrating a nozzle unit mounted in a module separating type 3D printer raw material extruding apparatus according to another embodiment of the present invention.
FIG. 6 is a detailed view illustrating a bushing and a concentric centering assembly mounted in a module separating type 3D printer raw material extruding apparatus according to an embodiment of the present invention.

The description of the disclosed technique is merely an example for structural or functional explanation and the scope of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the disclosed technology should be understood to include equivalents capable of realizing technical ideas.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms " first, " " second, " and the like are used to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular " include " or "have" are to be construed as including the stated feature, number, step, operation, It is to be understood that the combination is intended to specify that it is present and not to preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Each step may take place differently from the stated order unless explicitly stated in a specific order in the context. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosed technology belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted to be consistent with meaning in the context of the relevant art and can not be construed as having ideal or overly formal meaning unless expressly defined in the present application.

The present invention relates to a module separating type 3D printer raw material extruding device capable of preventing the inconvenience of nozzle part replacement due to deterioration clogging and thus leakage of filament melt, Will be described in detail.

FIGS. 2A, 2B, and 3 are views showing an apparatus for extruding a modular 3D printer raw material according to an exemplary embodiment of the present invention. 2 and 3, the module separable 3D printer raw material extruding apparatus includes a nozzle unit 100, a path-providing tube 200, and an anti-adhesion tube 300.

The nozzle unit 100 is provided with a cylindrical fastening structure 110 connected to the path providing tube 200. The nozzle unit 100 receives the filamentary raw material and applies heat thereto to extrude the melted filament. That is, the nozzle unit 100 melts and extrudes the injected filament through the path-providing tube 200 to form a molding on the molding plate. Here, it is preferable to use a thermoplastic resin as the raw material. The thermoplastic resin may be a resin such as PLA (poly lactic acid), ABS (Acrylonitrile Butadiene Styrene), HDPE (High-Density PolyEthylene) Nylon, or laywood, but it is not limited thereto. The diameter of the raw material discharging portion of the nozzle unit 100 is preferably 0.25 mm to 0.4 mm, but the viscosity of the raw material varies depending on the type of raw material and the temperature at which the raw material is liquefied.

The path providing pipe 200 is connected to the cylindrical fastening structures 110 and 120 of the nozzle unit 100 to form a raw material supply path. That is, the path-providing tube 200 forms a path for helping the filaments to be accurately injected into the nozzle unit 100, and is preferably a tube made of a metal material, particularly stainless steel, but is not limited thereto.

On the other hand, the adhesion preventive pipe 300 is inserted into the path providing tube 200 to prevent adhesion of the raw material in the path providing tube 200. That is, when the tube 300 is installed in the path-providing tube 200, the adhesion preventing tube 300 is formed as an inner wall of the path-providing tube 200 so that the filaments together with the tube 200 for path- The filaments are attached to the inner wall of the tube 200 to prevent the flow of the filaments from being disturbed. For this purpose, the tube is preferably made of Teflon, but is not limited thereto. Meanwhile, the anti-adhesion pipe 300 may also protect the inner wall of the path-providing tube 200 to prevent deterioration of the path-providing tube 200.

Here, the nozzle unit 100, the path-providing tube 200, and the anti-adhesion tube 300 are detachable as shown in FIG. 3, and the anti-adhesion tube 300 is provided in the lower part of the path- . That is, the adhesion preventive pipe 300 has an advantage that the filaments are attached to the inner wall of the path-providing tube 200 to prevent the supply of the raw material to the nozzle part 100 from being disturbed. However, in the case where the attachment preventing tube 300 is inserted into the upper part, when the nozzle is used for a long time, a phenomenon that the nozzle protrudes through the upper part of the tube 200 is observed through experiments. Is designed.

In addition, the path-providing tube 200 is formed with a stepped portion 210 inside the upper portion for preventing the attachment preventing tube 300 from falling to the upper portion. That is, the step 210 of the path-providing tube 200 further compliments the design of the lower insertion type described above to prevent the nozzle 210 from escaping through the upper portion of the tube 200 during long- . The step 210 of the path providing tube 200 is preferably designed such that the height 210a thereof is close to the thickness 300a of the adhesion preventing tube 300 in order to prevent the filament supply from being hindered But is not limited thereto.

The connection part 400 includes a first cylindrical shape in which a tube 200 for providing a path is inserted and a nozzle part 100 is inserted in a lower part to connect the path providing tube 200 and the nozzle part 100, The inner wall of the first cylindrical passage structure 410 is formed with a threaded hole matching the lower outer wall 110 of the cylindrical fastening structure, do. The apparatus for extruding a modular 3D printer raw material according to the present invention is a device for extruding a raw material for a path of a path for supplying a three dimensional printer to a path forming tube 200 and a nozzle unit 100, The connecting portion 400 may be used to connect the path-providing tube 200 and the nozzle unit 100 in a stable manner, as shown in FIG.

4 and 5 are views for explaining the nozzle unit 100 mounted in the module separating type 3D printer raw material extruding apparatus according to an embodiment of the present invention in detail. 4 and 5, the nozzle unit 100 may include a first raw material leakage preventing rubber ring 510 and a second raw material leakage preventing rubber ring 520.

The rubber ring 510 for preventing leakage of the first raw material has a ring-shaped structure made of rubber. The rubber ring 510 is inserted between the path-providing tube 200 and the nozzle unit 100 at the time of assembling the module- Thereby preventing the filament melt from escaping. The upper portion 120 of the cylindrical fastening structure of the nozzle unit 100 has a structure connected to the path providing tube 200 and has a structure in which the lower portion 110 of the cylindrical fastening structure having the threaded structure and the upper portion of the cylindrical fastening structure 120 may have a groove-like structure 100a on which the first material leakage preventing rubber ring 510 is seated.

The rubber ring 520 for preventing leakage of the second raw material has a ring-like structure of a rubber material like the rubber ring 510 for preventing leakage of the first raw material. In assembling the module separating type 3D printer raw material extruding apparatus of the present invention, (200) and the nozzle unit (100) to prevent the filament melt from coming out. The upper portion 120 of the cylindrical coupling structure of the nozzle unit 100 has a structure connected to the path providing tube 200 and has a structure in which the second raw material leakage preventing rubber A groove-like structure 100b on which the ring 520 is seated can be formed.

FIG. 6 is a view for explaining the bushing 600 and the concentric centering assembly 700 mounted in the module separation type 3D printer raw material extruding apparatus according to an embodiment of the present invention in detail. Referring to FIG. 6, the apparatus for extruding a modular 3D printer raw material according to an embodiment of the present invention may include a bushing (bush) 600 and an assembly 700 for concentric crystallization.

The bushing 600 may have a second cylindrical passage structure 610 into which a tube 200 for providing a path for lowering can be inserted so as to mount the tube 200 for providing a path to the three-dimensional printer body.

On the other hand, the concentric crystal assembly 700 is formed in a cylindrical structure so that a threaded hole is formed in the upper portion 700a and a lower portion 700b is coupled to surround the outside of the path providing tube 200, And a concentric determining step 710 may be formed at the boundary of the lower part mounted on the outside of the path providing tube 200. That is, when the path-providing tube 200 is mounted on the three-dimensional printer body, the concentric crystal assembly 700 provides the step 710 so that the center is not twisted, so that the filament is stably To be supplied. At this time, the concentric crystal assembly 700 is formed by inserting a threaded bore in the inner wall of the second cylindrical passage structure 610 to match the threaded bore 700a of the concentric crystal assembly, Lt; RTI ID = 0.0 > stable < / RTI >

Although the disclosed method and apparatus have been described with reference to the embodiments shown in the drawings for illustrative purposes, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. I will understand that. Accordingly, the true scope of protection of the disclosed technology should be determined by the appended claims.

10: raw materials
20: Rollers
30: Nozzle
100:
110, 120: Cylindrical fastening structure
200: pipe for providing path
210: step
300: Adhesion prevention tube
400: Connection
410: first cylindrical passage structure
510: Rubber ring for preventing leakage of the first raw material
520: Rubber ring for preventing leakage of the second raw material
600: Bush
610: Second cylindrical passage structure
700: concentric crystal assembly
710: Concentric crystal step

Claims (7)

In a modular, separable 3D printer raw material extrusion apparatus,
A nozzle unit having a cylindrical fastening structure and extruding a raw material;
A path providing tube connected to the cylindrical fastening structure of the nozzle unit to form a raw material supply path;
An anti-sticking tube inserted in the path-providing tube to prevent attachment of the raw material in the path-providing tube;
A connecting portion providing a first cylindrical passage structure in which the path providing tube is inserted into the upper portion and the nozzle portion is inserted in the lower portion to connect the path providing tube and the nozzle portion;
A first raw material leakage preventing rubber ring having a ring-shaped structure made of rubber;
A threaded portion is formed on the upper portion and the lower portion is coupled to surround the outside of the path-providing tube, and a step for concentric determination is formed on the boundary between the upper portion where the threaded portion is formed and the lower portion mounted outside the path- An assembly for concentric crystallization; And
And a bush for mounting the path providing tube in the three-dimensional printer main body, the bush having a second cylindrical passage structure into which the path providing tube can be inserted,
Wherein the nozzle portion, the path providing tube, and the adhesion preventive tube are detachable from each other, the adhesion preventive tube is inserted into the lower portion of the path providing tube,
Wherein a threaded hole is formed in a lower outer wall of the cylindrical fastening structure, and an inner wall of the first cylindrical passage structure is formed with a threaded hole matching the lower outer wall of the cylindrical fastening structure,
Wherein the upper portion of the cylindrical fastening structure is connected to the path providing tube, and a grooved portion in which the first raw material leakage preventing rubber ring is seated is disposed at a boundary between a lower portion where the threaded portion is formed in the cylindrical fastening structure and an upper portion of the cylindrical fastening structure Structure is formed,
And the inner wall of the second cylindrical passage structure has a threaded hole matched with a threaded hole of the concentric crystal assembly.
The method according to claim 1,
Wherein the path providing tube has a step formed inside the upper portion to prevent the attachment preventing pipe from falling to the upper portion.
delete delete The method according to claim 1,
Further comprising a second material leakage-preventing rubber ring having a ring-shaped structure made of a rubber material,
And a groove-like structure in which the rubber ring for preventing leakage of the second raw material is seated is formed in a portion of the upper portion of the cylindrical fastening structure adjacent to the path providing tube side. delete delete
KR1020150046977A 2015-04-02 2015-04-02 Apparatus for using separable module in spouting 3d printing material KR101689117B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150046977A KR101689117B1 (en) 2015-04-02 2015-04-02 Apparatus for using separable module in spouting 3d printing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150046977A KR101689117B1 (en) 2015-04-02 2015-04-02 Apparatus for using separable module in spouting 3d printing material

Publications (2)

Publication Number Publication Date
KR20160118607A KR20160118607A (en) 2016-10-12
KR101689117B1 true KR101689117B1 (en) 2016-12-23

Family

ID=57173698

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150046977A KR101689117B1 (en) 2015-04-02 2015-04-02 Apparatus for using separable module in spouting 3d printing material

Country Status (1)

Country Link
KR (1) KR101689117B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102445950B1 (en) * 2021-01-20 2022-09-21 주식회사 큐비콘 High hardness nozzle for 3D printer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009532244A (en) 2006-04-03 2009-09-10 ストラタシス・インコーポレイテッド Single motor extrusion head with multiple extrusion lines
CN103963302A (en) 2014-04-25 2014-08-06 福建海源三维打印高科技有限公司 3D printer head of wax material
KR101432121B1 (en) * 2013-06-25 2014-08-20 주식회사 오픈크리에이터즈 Nozzle assembly for three-demensional printer
CN104369385A (en) 2014-11-28 2015-02-25 珠海天威飞马打印耗材有限公司 Printing head of 3D (three-dimensional) printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009532244A (en) 2006-04-03 2009-09-10 ストラタシス・インコーポレイテッド Single motor extrusion head with multiple extrusion lines
KR101432121B1 (en) * 2013-06-25 2014-08-20 주식회사 오픈크리에이터즈 Nozzle assembly for three-demensional printer
CN103963302A (en) 2014-04-25 2014-08-06 福建海源三维打印高科技有限公司 3D printer head of wax material
CN104369385A (en) 2014-11-28 2015-02-25 珠海天威飞马打印耗材有限公司 Printing head of 3D (three-dimensional) printer

Also Published As

Publication number Publication date
KR20160118607A (en) 2016-10-12

Similar Documents

Publication Publication Date Title
KR101502342B1 (en) Apparatus spouting 3d printing material by using screw and 3d printer using the apparatus
US9050753B2 (en) Liquefier assembly having inlet liner for use in additive manufacturing system
EP3002108B1 (en) Apparatus for three-dimensional printing
AU664261B2 (en) Plastic system for injection molding and extruding a hollow tube for forming a plastic container by blowing
KR101849592B1 (en) Three dimensional printer material with replacable nozzles
IL229012A (en) Detachable filament guide and nozzle module for 3d printers
KR101689117B1 (en) Apparatus for using separable module in spouting 3d printing material
KR101802193B1 (en) Nozzle structure for three dimensional printer
CN214419603U (en) Variable-caliber printing nozzle
CN109094011B (en) 3D printer head suitable for polyether-ether-ketone
US8021597B2 (en) Method and apparatus for producing plastic containers
JP5864576B2 (en) Plasticizing units such as injection molding machines and extrusion machines
CN100441392C (en) Method of designing and producing a mold
KR102106209B1 (en) Extruder for 3D printer
RU2363576C2 (en) Extrusion nozzle for extrusion of hollow profiles
CN216230678U (en) Polyethylene composite pipe extrusion die
KR20190139807A (en) Nozzle structure for 3D printer
JP2006516934A (en) Coin injection nozzle
CN207028190U (en) A kind of nozzle arrangements of 3D printer
US20190111601A1 (en) Injection moulding tool
KR102445950B1 (en) High hardness nozzle for 3D printer
KR101316883B1 (en) Pvc pipe
KR20170031888A (en) Apparatus for sensing 3dimensional printer material and 3dimensional printer using the apparatus
JP2016091950A (en) Linear material coating method and linear material coating device
CN112743828A (en) Annular sandwich multi-material 4D printing nozzle and 4D printing equipment

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant