CN109203477B - 3D printing apparatus rapid heating feed pipeline - Google Patents

3D printing apparatus rapid heating feed pipeline Download PDF

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Publication number
CN109203477B
CN109203477B CN201811388528.5A CN201811388528A CN109203477B CN 109203477 B CN109203477 B CN 109203477B CN 201811388528 A CN201811388528 A CN 201811388528A CN 109203477 B CN109203477 B CN 109203477B
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China
Prior art keywords
pipe
hot fluid
supply pipe
recovery pipe
fluid supply
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CN201811388528.5A
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Chinese (zh)
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CN109203477A (en
Inventor
陈在铁
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Shazhou Professional Institute of Technology
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Shazhou Professional Institute of Technology
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Priority to CN201811388528.5A priority Critical patent/CN109203477B/en
Publication of CN109203477A publication Critical patent/CN109203477A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/295—Heating elements
    • 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
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a rapid heating feeding pipeline of 3D printing equipment, which comprises the following components: the hot fluid recycling device comprises a conveying pipe, a hot fluid supply pipe, a hot fluid recycling pipe, a binding layer and a heat insulation sleeve, wherein the hot fluid supply pipe and the hot fluid recycling pipe are respectively arranged on one side of the conveying pipe and extend along the length direction of the conveying pipe, the binding layer is arranged on the outer sides of the hot fluid supply pipe and the hot fluid recycling pipe to be wrapped and limited, and the heat insulation sleeve is concentrically arranged on the outer side of the binding layer. By means of the mode, the 3D printing equipment rapidly heats the feeding pipeline, circularly heats and supplies the hot fluid, the hot fluid supply pipe and the hot fluid recovery pipe are utilized for heating the conveying pipe, the fluidity of liquid raw materials in the conveying pipe is guaranteed, the production stability is high, or the powder raw materials are preheated, the laser sintering power is reduced, the production efficiency is improved, the heating rate is high, and the 3D printing equipment is suitable for rapid 3D printing work.

Description

3D printing apparatus rapid heating feed pipeline
Technical Field
The invention relates to the technical field of 3D printing, in particular to a rapid heating feeding pipeline of 3D printing equipment.
Background
The common printer used in daily life can only print planar works designed by a computer, such as photos and documents, the working principle of the 3D printing equipment is basically the same as that of the common printer, but the printing materials of the common printer are ink and paper, and the 3D printer is filled with different printing materials such as metal, ceramic, plastic, concrete and the like, so that the printer is a real raw material, and can print robots, printing toy vehicles, printing various models, even foods, buildings and the like.
Because the raw materials of 3D printing are real materials, the requirement of partial liquid raw materials on temperature in the feeding process is high, and when the temperature is low, the fluidity of the raw materials is poor, and the raw materials are easy to coagulate in a pipeline.
In addition, although the powder raw material is insensitive to temperature in the conveying process and is formed by laser sintering during printing, the printing speed and the production efficiency are affected due to the low temperature of the raw material and high power requirement on laser, and improvement is needed.
Disclosure of Invention
The invention mainly solves the technical problem of providing a rapid heating and feeding pipeline of 3D printing equipment, which is used for heating conveyed raw materials, ensuring fluidity and improving production efficiency.
In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a 3D printing apparatus rapid heating feed conduit comprising: the hot fluid recycling device comprises a conveying pipe, a hot fluid supply pipe, a hot fluid recycling pipe, a binding layer and a heat insulation sleeve, wherein the hot fluid supply pipe and the hot fluid recycling pipe are respectively arranged on one side of the conveying pipe and extend along the length direction of the conveying pipe, the binding layer is arranged on the outer sides of the hot fluid supply pipe and the hot fluid recycling pipe to be wrapped and limited, and the heat insulation sleeve is concentrically arranged on the outer side of the binding layer.
In a preferred embodiment of the present invention, the hot fluid supply pipe includes a first supply pipe and a second supply pipe, the hot fluid recovery pipe includes a first recovery pipe and a second recovery pipe, the first supply pipe, the first recovery pipe, the second supply pipe and the second recovery pipe are distributed on an outer circle of the delivery pipe in a ring array, and pipe joints are respectively provided between ends of the first supply pipe and the first recovery pipe and between ends of the second supply pipe and ends of the second recovery pipe for communication.
In a preferred embodiment of the present invention, cambered grooves attached to the outer circles of the conveying pipes are respectively concavely arranged on the outer circles of the first supply pipe, the first recovery pipe, the second supply pipe and the second recovery pipe.
In a preferred embodiment of the present invention, spacing support structures are disposed at intervals in the binding layer, and each of the spacing support structures includes a spacer disposed between adjacent hot fluid supply pipes and hot fluid recovery pipes.
In a preferred embodiment of the invention, the material conveying pipe adopts a boron silicon rubber pipe or a soft high-temperature resistant plastic pipe.
In a preferred embodiment of the present invention, the binding layer is a cloth tape spirally wound on the outer sides of the hot fluid supply pipe and the hot fluid recovery pipe.
In a preferred embodiment of the present invention, the heat insulation sleeve is a foamed plastic heat insulation sleeve.
In a preferred embodiment of the invention, a rubber sheath is arranged outside the heat insulation sleeve.
In a preferred embodiment of the invention, the outer end of the isolation block is provided with an outer convex cambered surface corresponding to the binding layer, the inner end of the isolation block is provided with an inner concave cambered surface corresponding to the conveying pipe, and two sides of the isolation block are provided with limit clamping grooves corresponding to the hot fluid supply pipe and the hot fluid recovery pipe.
In a preferred embodiment of the present invention, the concave cambered surface is provided with a toothed anti-slip structure in a convex manner.
The beneficial effects of the invention are as follows: according to the rapid heating feeding pipeline of the 3D printing equipment, the hot fluid supply pipe is externally connected with the output end of the hot fluid supply device, the hot fluid recovery pipe is externally connected with the input end of the hot fluid supply device, circulation heating and supply of hot fluid are carried out, the hot fluid supply pipe and the hot fluid recovery pipe are utilized to heat the conveying pipe, the fluidity of liquid raw materials in the conveying pipe is ensured, the production stability is high, or the powder raw materials are preheated, the laser sintering power is reduced, and the production efficiency is improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of a fast heating feed line of a 3D printing apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic view of the structure of the spacer in fig. 2.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, an embodiment of the present invention includes:
a 3D printing apparatus rapid heating feed conduit comprising: the hot fluid recycling device comprises a conveying pipe 9, a hot fluid supply pipe, a hot fluid recycling pipe, a binding layer 7 and a heat insulation sleeve 5, wherein the hot fluid supply pipe and the hot fluid recycling pipe are respectively arranged on one side of the conveying pipe 9 and extend along the length direction of the conveying pipe 9, the hot fluid supply pipe is externally connected with the output end of a hot fluid supply device, the hot fluid recycling pipe is externally connected with the input end of the hot fluid supply device to perform circulation heating supply of hot fluid, the hot fluid can adopt heating oil or water, and the hot fluid supply device comprises a pump body and a heating box body to perform circulation heating supply of the hot fluid.
The material conveying pipe 9 is heated by the hot fluid supply pipe and the hot fluid recovery pipe, so that the fluidity of liquid raw materials in the material conveying pipe 9 is ensured, the production stability is high, or the powder raw materials are preheated, the laser sintering power is reduced, and the production efficiency is improved.
The binding layer 7 is arranged on the outer sides of the hot fluid supply pipe and the hot fluid recovery pipe to carry out wrapping limiting, the binding layer 7 is a cloth belt spirally wound on the outer sides of the hot fluid supply pipe and the hot fluid recovery pipe, construction is convenient, the hot fluid supply pipe and the hot fluid recovery pipe are bound, and bending actions of the hot fluid supply pipe and the hot fluid recovery pipe are not affected.
The heat insulation sleeve 5 is concentrically arranged on the outer side of the binding layer 7, the heat insulation sleeve 5 is a foamed plastic heat insulation sleeve, the heat insulation effect is good, and the rubber sheath 6 is arranged on the outer side of the heat insulation sleeve 5 for safety protection, so that damage to the heat insulation sleeve 5 is avoided.
The hot fluid supply pipe comprises a first supply pipe 1 and a second supply pipe 3, the hot fluid recovery pipe comprises a first recovery pipe 2 and a second recovery pipe 4, the first supply pipe 1, the first recovery pipe 2, the second supply pipe 3 and the second recovery pipe 4 are distributed on the outer circle of the conveying pipe 9 in an annular array mode, the conveying pipe 9 is a boron silicon rubber pipe or a soft high-temperature-resistant plastic pipe, preferably a boron silicon rubber pipe, the boron silicon rubber pipe is good in heat resistance, can work for a long time at 400 ℃, is flexible in bending and is suitable for moving of a spray head during 3D printing.
The pipe joints are respectively arranged between the tail ends of the first supply pipe 1 and the first recovery pipe 2 and between the tail ends of the second supply pipe 3 and the second recovery pipe 4 for communication, circulation of hot fluid is achieved, two groups of circulation pipelines are used for heating more stably, temperature sensors can be arranged at intervals on the outer side of the conveying pipe 9, temperature detection by operators is facilitated, and power of the hot fluid supply device is regulated.
The cambered grooves attached to the outer circle of the conveying pipe 9 are respectively concavely formed in the outer circles of the first supply pipe 1, the first recovery pipe 2, the second supply pipe 3 and the second recovery pipe 4, so that the attaching effect is good, the heat conductivity is good, the contact with the binding layer 7 is reduced, and the heat energy loss is small.
Spacing support structures 8 are arranged in the binding layer 7 at intervals, and each spacing support structure comprises a separation block 81 arranged between adjacent hot fluid supply pipes and hot fluid recovery pipes. The outer end of the isolation block 81 is provided with an outer convex cambered surface 82 corresponding to the binding layer, the inner end of the isolation block 81 is provided with an inner concave cambered surface 84 corresponding to the conveying pipe 9, two sides of the isolation block 81 are provided with limit clamping grooves 83 corresponding to the hot fluid supply pipe and the hot fluid recovery pipe, dislocation of the hot fluid supply pipe and the hot fluid recovery pipe is avoided, and structural stability is high during use.
The concave cambered surface 84 is provided with a toothed anti-slip structure 85 in a protruding manner, so that the stability of the limiting support structure 8 is improved, and the problem of axial sliding is avoided.
In summary, the rapid heating and feeding pipeline of the 3D printing device is connected between the 3D printing spray head and the hot fluid supply device to heat or preheat raw materials, is widely applicable to liquid or powdery raw materials, improves raw material fluidity and printing work efficiency, is rapid in heating rate, and is suitable for rapid 3D printing work.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.

Claims (6)

1. A 3D printing apparatus rapid heating feed conduit, comprising: the hot fluid supply pipe and the hot fluid recovery pipe are respectively arranged on one side of the conveying pipe and extend along the length direction of the conveying pipe, the binding layer is arranged on the outer sides of the hot fluid supply pipe and the hot fluid recovery pipe for wrapping and limiting, the heat insulation sleeve is concentrically arranged on the outer sides of the binding layer, the hot fluid supply pipe comprises a first supply pipe and a second supply pipe, the hot fluid recovery pipe comprises a first recovery pipe and a second recovery pipe, the first supply pipe, the first recovery pipe, the second supply pipe and the second recovery pipe are distributed on the outer circle of the conveying pipe in a circular array, pipe joints are respectively arranged between the tail ends of the first supply pipe and the first recovery pipe and between the tail ends of the second supply pipe and the second recovery pipe for communication, limiting support structures are arranged in the binding layer at intervals, each limiting support structure comprises a separation block arranged between the adjacent hot fluid supply pipe and the hot fluid recovery pipe, the outer ends of the separation blocks are provided with convex cambered surfaces corresponding to the binding layer, the inner end of the isolation block is provided with an inward concave cambered surface corresponding to the conveying pipe, two sides of the isolation block are provided with limit clamping grooves corresponding to the hot fluid supply pipe and the hot fluid recovery pipe, and cambered surface grooves attached to the outer circle of the conveying pipe are respectively and inward concave on the outer circles of the first supply pipe, the first recovery pipe, the second supply pipe and the second recovery pipe.
2. The 3D printing apparatus rapid heating feed conduit of claim 1, wherein the feed conduit is a boron silicone tube or a soft high temperature resistant plastic tube.
3. The 3D printing apparatus rapid heating feed pipeline of claim 1, wherein the binding layer is a cloth tape spirally wound outside the hot fluid supply pipe and the hot fluid recovery pipe.
4. The 3D printing apparatus rapid heating feed conduit of claim 1, wherein the insulating sleeve is a foamed plastic insulating sleeve.
5. The 3D printing apparatus rapid heating feed conduit of claim 1, wherein a rubber jacket is provided outside of the sleeve.
6. The rapid heating feed pipeline of 3D printing equipment according to claim 1, wherein a toothed anti-slip structure is arranged on the concave cambered surface in a convex manner.
CN201811388528.5A 2018-11-21 2018-11-21 3D printing apparatus rapid heating feed pipeline Active CN109203477B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811388528.5A CN109203477B (en) 2018-11-21 2018-11-21 3D printing apparatus rapid heating feed pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811388528.5A CN109203477B (en) 2018-11-21 2018-11-21 3D printing apparatus rapid heating feed pipeline

Publications (2)

Publication Number Publication Date
CN109203477A CN109203477A (en) 2019-01-15
CN109203477B true CN109203477B (en) 2023-06-09

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361213A1 (en) * 1976-08-12 1978-03-10 Bertin & Cie Flowing fluid platens for laminating thermoplastics - between thin metal covers for high thermal efficiency and short unit cycle times
CN105666876B (en) * 2016-03-01 2018-01-05 西安交通大学 A kind of fluid circulation temperature control fusion sediment shapes printhead
CN108515692B (en) * 2017-06-21 2020-03-06 泉州市比邻三维科技有限公司 Three-dimensional printer that finished product wholeness is strong
CN108297407A (en) * 2017-12-17 2018-07-20 成都钰月科技有限责任公司 A kind of 3D printer is quickly cooled down and preheats machine base
KR101884420B1 (en) * 2018-03-21 2018-08-01 서경진 Nozzle heat dissipation unit of 3D printer using thermosyphon and manufacturing method thereof
CN209079235U (en) * 2018-11-21 2019-07-09 沙洲职业工学院 A kind of 3D printing equipment quickly heats feeding pipeline

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