CN110815492A - 3D printing device - Google Patents
3D printing device Download PDFInfo
- Publication number
- CN110815492A CN110815492A CN201911144626.9A CN201911144626A CN110815492A CN 110815492 A CN110815492 A CN 110815492A CN 201911144626 A CN201911144626 A CN 201911144626A CN 110815492 A CN110815492 A CN 110815492A
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- China
- Prior art keywords
- travelling mechanism
- axis travelling
- axis
- printing device
- material bin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- 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
Abstract
The invention provides a 3D printing device which comprises a rack, an X-axis travelling mechanism, a Y-axis travelling mechanism, a Z-axis travelling mechanism and a material extruding mechanism, wherein the X-axis travelling mechanism is arranged on the rack; the Y-axis travelling mechanism is installed on the rack, the X-axis travelling mechanism is installed on the Y-axis travelling mechanism, the Z-axis travelling mechanism is installed on the X-axis travelling mechanism, and the material extruding mechanism is installed at the bottom of the Z-axis travelling mechanism; the material extruding mechanism comprises a driving motor, a connecting sheet, a material bin, an extruding screw and an extruding die head; the driving motor and the extrusion screw are installed inside the lower side of the Z-axis travelling mechanism, the material bin is connected to the outer side of the lower side of the Z-axis travelling mechanism through a connecting sheet, and the extrusion die head is connected to the bottom of the material bin through a bolt. The invention has the advantages of high printing appearance quality, high printing speed, light printed product weight, material saving and low cost.
Description
Technical Field
The invention relates to the field of 3D printing, in particular to a 3D printing device.
Background
The 3D printing technology is a technology for generating a three-dimensional entity by adding materials layer by layer through continuous physical layer stacking, and is different from a traditional material removal processing technology, and therefore is also called additive manufacturing. After decades of development, the processing technology of the 3D printing device is expanded from the light-cured resin technology to the FDM fused laminated forming, SLS selective laser sintering technology and LOM layered entity manufacturing technology, and the processing materials are expanded to resins, plastics, metal powder, cement, ceramic blanks and the like, and are partially applied in the fields of aerospace, automobiles, medical treatment, buildings and the like.
However, the existing 3D printing technology also has obvious defects, such as slow printing speed, which cannot meet the requirements of modern industrial mass production; the printing material is limited, so that the appearance and the mechanical property of the product have certain difference compared with the traditional material; the special material cost is higher, and the application and popularization of the 3D printing technology are limited.
Chinese patent application No. CN201910255620.2 discloses a high-efficiency multi-nozzle synchronous printing FDM3D printer, which realizes synchronous batch printing by increasing the number of printer nozzles, thereby improving the processing efficiency, but it is essentially in the limited printing space, and is not suitable for the production of large-size products by sacrificing the efficiency of printing size replacement.
Chinese patent application with application number CN201610131312.5 discloses a 3D house printer of job site printing concrete, use the concrete as extruding printing material, accomplish the site building in house, but the requirement that the concrete material will satisfy 3D and print needs add the plasticizer, greatly increased the cost of concrete, upper concrete can produce pressure deformation to the lower floor when printing layer upon layer, the appearance quality in house has been reduced, cause the concrete to collapse easily, must wait until lower floor's cement solidifies behind the certain time and just can continue to print, the printing speed has been restricted greatly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the 3D printing device which is good in appearance quality, high in printing speed and capable of saving material cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
A3D printing device comprises a rack, an X-axis travelling mechanism, a Y-axis travelling mechanism, a Z-axis travelling mechanism and a material extrusion mechanism; the Y-axis travelling mechanism is arranged on the rack; the X-axis travelling mechanism is arranged on the Y-axis travelling mechanism and moves back and forth along the Y axis under the control of the Y-axis travelling mechanism; the Z-axis travelling mechanism is arranged on the X-axis travelling mechanism and moves left and right along the X axis under the control of the X-axis travelling mechanism; the material extruding mechanism is arranged at the bottom of the Z-axis travelling mechanism and moves up and down along the Z axis under the control of the Z-axis travelling mechanism; the material extruding mechanism comprises a driving motor, a connecting sheet, a material bin, an extruding screw and an extruding die head; the driving motor and the extrusion screw are installed inside the lower side of the Z-axis travelling mechanism, the material bin is connected to the outside of the lower side of the Z-axis travelling mechanism through a connecting sheet, and the extrusion die head is connected to the bottom of the material bin through a bolt;
furthermore, the interior of the material bin is of a square conical or round hollow structure with a large upper part and a small lower part, and the ratio of the maximum side length or the diameter of the hollow structure to the depth is 1:2-1:10, so that the optimal balance between the material storage capacity and the extrusion pressure is obtained; an extrusion opening is formed in the center of the bottom of the material bin, and connection threaded holes are formed in the periphery of the bottom of the material bin;
furthermore, the extrusion screw is conical with a large upper part and a small lower part, the length of the screw is less than that of the material bin, and the ratio of the maximum diameter to the length of the screw is 1:2-1:10, so that the optimal material storage capacity and the balance between the extrusion pressure are obtained;
furthermore, the extrusion die head comprises an outer die and a core die, the inner cavity of the outer die is of a hollow conical structure matched with the bottom of the material bin, and threaded through holes connected with the bottom of the material bin are formed in the periphery of the bottom of the outer die;
furthermore, the core mold is of a conical structure with a large upper part and a small lower part, is processed into a corresponding shape according to design requirements, is provided with conical protrusions matched with the outer mold at the periphery, and is placed in an inner cavity of the outer mold;
further, the extrusion of the extrusion die head is one of the section bars with the same cross section of the square-shaped, Chinese character 'ri' -shaped, Tian-shaped and Mi-shaped cavities;
further, the printing material used by the 3D printing device is one of fiber reinforced cement, concrete, ceramic blank and clay.
Compared with the prior art, the invention has the following gain effects:
(1) the printed product has high appearance quality and high printing speed. The extrusion screw can provide extrusion molding pressure, so that the water content of printing consumables is reduced, the surface of the extruded material profile is smooth, the bearing capacity is high, the cross section of the material profile can be designed into a square shape, a Chinese character ri shape, a Chinese character tian shape and a Chinese character mi shape as required to provide support, the bearing capacity is further improved, collapse due to the weight pressure of the materials on the upper layer is avoided, and continuous printing can be realized;
(2) the printed product has light weight, material saving and low cost. The printed hollow section material has less consumption, thereby not only reducing the weight of the product, but also saving the cost.
Drawings
Fig. 1 is a schematic structural diagram of a 3D printing apparatus according to the present invention;
FIG. 2 is a schematic structural view of a material extruding mechanism according to the present invention;
FIG. 3 is a schematic view of the structure of the material bin of the present invention;
FIG. 4 is a schematic view of the structure of an extrusion screw of the present invention;
FIG. 5 is a schematic view of the structure of an extrusion die of the present invention;
FIG. 6 is a schematic cross-sectional view of an extruded wall of the present invention.
Wherein, 1, a frame; 2-an X-axis travelling mechanism; 3-Y-axis running gear; 4-Z-axis running gear; 5, a material extruding mechanism; 51-a drive motor; 52-connecting piece; 53-material bin; 54-extrusion screw; 55-extrusion die head; 551-external mold; 552 — mandrel.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Referring to fig. 1, a 3D printing apparatus includes a frame 1, an X-axis traveling mechanism 2, a Y-axis traveling mechanism 3, a Z-axis traveling mechanism 4, and a material extruding mechanism 5;
the Y-axis travelling mechanism 3 is arranged on the rack 1;
the X-axis travelling mechanism 2 is arranged on the Y-axis travelling mechanism 3 and moves back and forth along the Y axis under the control of the Y-axis travelling mechanism 3;
the Z-axis travelling mechanism 4 is arranged on the X-axis travelling mechanism 2 and moves left and right along the X axis under the control of the X-axis travelling mechanism 2;
the material extruding mechanism 5 is arranged at the bottom of the Z-axis travelling mechanism 4 and moves up and down along the Z axis under the control of the Z-axis travelling mechanism 4;
as shown in fig. 2, the material extruding mechanism 5 includes a driving motor 51, a connecting sheet 52, a material bin 53, an extruding screw 54 and an extruding die head 55; the driving motor 51 and the extrusion screw 54 are installed inside the Z-axis travelling mechanism 4, the material bin 53 is connected to the outer side of the Z-axis travelling mechanism 4 through a connecting sheet 52, and the extrusion die head 55 is connected to the bottom of the material bin 54 through a bolt;
as shown in fig. 3, the interior of the material bin 53 is a square conical or circular hollow structure with a large top and a small bottom, and the maximum side length or the ratio of the diameter to the depth of the hollow structure is 1:3, so as to obtain the optimal material storage amount and the optimal balance between extrusion pressure; an extrusion opening is formed in the center of the bottom of the material bin 53, and connection threaded holes are formed in the periphery of the bottom of the material bin;
referring to fig. 4, the extruding screw 54 is conical with a large top and a small bottom, the length of the screw is less than the length of the material bin, and the ratio of the maximum diameter to the length of the screw is 1:5, so as to obtain the best balance between the material storage amount and the extruding pressure;
referring to fig. 5, the extrusion die head 55 includes an external die 551 and a core die 552, an inner cavity of the external die 551 is a hollow conical structure matching with the bottom of the material bin 53, and threaded through holes connected with the bottom of the material bin 53 are formed around the bottom;
the core mold 552 is a conical structure with a large upper part and a small lower part, the extrusion shape is designed to be a Chinese character 'ri', conical protrusions matched with the outer mold are arranged on the periphery of the core mold, and the core mold is placed in the inner cavity of the outer mold 553;
referring to fig. 6, the material used for printing is fiber reinforced cement, the fiber reinforced cement blank extruded by a vacuum extruder is added into a material bin 53, and under the extrusion of an extrusion screw 54, a cement profile with a cross section in a shape of a Chinese character 'ri' is extruded through an extrusion die head 55, and the profile is printed into a wall according to the design.
While the principles of the invention have been described in detail above in connection with embodiments thereof, it will be understood by those skilled in the art that the foregoing examples are merely illustrative of exemplary implementations of the invention and are not limiting of the scope of the invention. The details of the embodiments are not to be construed as limiting the scope of the invention, and any obvious modifications, such as equivalent alterations, simple substitutions and the like, based on the technical means of the invention, may be made within the scope of the invention without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a 3D printing device which characterized in that: the 3D printing device comprises a frame, an X-axis travelling mechanism, a Y-axis travelling mechanism, a Z-axis travelling mechanism and a material extruding mechanism,
the Y-axis travelling mechanism is arranged on the rack;
the X-axis travelling mechanism is arranged on the Y-axis travelling mechanism and moves back and forth along the Y axis under the control of the Y-axis travelling mechanism;
the Z-axis travelling mechanism is arranged on the X-axis travelling mechanism and moves left and right along the X axis under the control of the X-axis travelling mechanism;
the material extruding mechanism is arranged at the bottom of the Z-axis travelling mechanism and moves up and down along the Z axis under the control of the Z-axis travelling mechanism;
the material extruding mechanism comprises a driving motor, a connecting sheet, a material bin, an extruding screw and an extruding die head;
the driving motor and the extrusion screw are installed inside the lower side of the Z-axis travelling mechanism, the material bin is connected to the outer side of the lower side of the Z-axis travelling mechanism through a connecting sheet, and the extrusion die head is connected to the bottom of the material bin through a bolt.
2. A 3D printing device according to claim 1, characterized in that: the interior of the material bin is of a square conical or circular hollow structure with a large upper part and a small lower part, the maximum side length or the diameter-depth ratio of the hollow structure is 1:2-1:10, the central part of the bottom of the material bin is provided with an extrusion opening, and the periphery of the bottom is provided with connecting threaded holes.
3. A 3D printing device according to claim 1, characterized in that: the extrusion screw is conical with a large upper part and a small lower part, the length of the screw is less than that of the material bin, and the ratio of the maximum diameter to the length of the screw is 1:2-1: 10.
4. A 3D printing device according to claim 1, characterized in that: the extrusion die head comprises an outer die and a core die, the inner cavity of the outer die is of a hollow conical structure matched with the bottom of the material bin, and threaded through holes connected with the bottom of the material bin are formed in the periphery of the bottom of the outer die.
5. A3D printing device according to claim 4, characterized in that: the core mold is in a conical structure with a large upper part and a small lower part, is processed into a corresponding shape according to design requirements, is provided with conical protrusions matched with the outer mold at the periphery, and is placed in an inner cavity of the outer mold.
6. A 3D printing device according to claim 1, characterized in that: the extrusion die head extrudes one of the section bars with the same cross section of the square-shaped, the Chinese character ri-shaped, the field-shaped and the rice-shaped cavities.
7. A 3D printing device according to claim 1, characterized in that: the printing material used by the 3D printing device is one of fiber reinforced cement, concrete, ceramic blank and clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144626.9A CN110815492A (en) | 2019-11-20 | 2019-11-20 | 3D printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144626.9A CN110815492A (en) | 2019-11-20 | 2019-11-20 | 3D printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110815492A true CN110815492A (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911144626.9A Pending CN110815492A (en) | 2019-11-20 | 2019-11-20 | 3D printing device |
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| Country | Link |
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| CN (1) | CN110815492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873476A (en) * | 2021-01-13 | 2021-06-01 | 河北工业大学 | Extrusion formula 3D prints concrete extrusion system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068049U (en) * | 1990-05-23 | 1990-12-26 | 段有福 | Spiral nobbing type circle pipe machine |
| CN206474678U (en) * | 2017-01-04 | 2017-09-08 | 东莞华晶粉末冶金有限公司 | A kind of combined type extrusion die |
| CN109129819A (en) * | 2018-09-25 | 2019-01-04 | 中国建筑股份有限公司 | A kind of on-site concrete 3D printing equipment and construction techniques |
| CN208376000U (en) * | 2018-07-04 | 2019-01-15 | 青岛理工大学 | A kind of integrated spray head electric field driven injection micro-nano 3D printing device |
| CN208601697U (en) * | 2018-06-28 | 2019-03-15 | 叶年催 | A kind of three-dimensional motion mechanism of 3D printing clay |
| KR20190098823A (en) * | 2018-01-31 | 2019-08-23 | 용인송담대학교 산학협력단 | 3D Printer for Construction Materials |
-
2019
- 2019-11-20 CN CN201911144626.9A patent/CN110815492A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068049U (en) * | 1990-05-23 | 1990-12-26 | 段有福 | Spiral nobbing type circle pipe machine |
| CN206474678U (en) * | 2017-01-04 | 2017-09-08 | 东莞华晶粉末冶金有限公司 | A kind of combined type extrusion die |
| KR20190098823A (en) * | 2018-01-31 | 2019-08-23 | 용인송담대학교 산학협력단 | 3D Printer for Construction Materials |
| CN208601697U (en) * | 2018-06-28 | 2019-03-15 | 叶年催 | A kind of three-dimensional motion mechanism of 3D printing clay |
| CN208376000U (en) * | 2018-07-04 | 2019-01-15 | 青岛理工大学 | A kind of integrated spray head electric field driven injection micro-nano 3D printing device |
| CN109129819A (en) * | 2018-09-25 | 2019-01-04 | 中国建筑股份有限公司 | A kind of on-site concrete 3D printing equipment and construction techniques |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873476A (en) * | 2021-01-13 | 2021-06-01 | 河北工业大学 | Extrusion formula 3D prints concrete extrusion system |
| CN112873476B (en) * | 2021-01-13 | 2022-04-01 | 河北工业大学 | Extrusion formula 3D prints concrete extrusion system |
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Application publication date: 20200221 |