CN209971547U - Three-dimensional printer and three-dimensional object - Google Patents
Three-dimensional printer and three-dimensional object Download PDFInfo
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- CN209971547U CN209971547U CN201920689953.1U CN201920689953U CN209971547U CN 209971547 U CN209971547 U CN 209971547U CN 201920689953 U CN201920689953 U CN 201920689953U CN 209971547 U CN209971547 U CN 209971547U
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Abstract
The utility model provides a three-dimensional printer and utilize three-dimensional object that this three-dimensional printer printed, three-dimensional printer includes: the printing platform is used for bearing a three-dimensional object; a first material print head for extruding a first material to print a three-dimensional object layer by layer on a print platform; a laser punch for creating a connecting position hole in a molded layer of the three-dimensional object, the connecting position hole extending in a depth direction at least between two adjacent molded layers, and the connecting position hole having a depth greater than a thickness of one molded layer; a second material print head for filling the connection position hole with a second material; and the heating device is used for heating the first material on the printing platform. The reinforced structure is embedded between the forming layers inside the printed three-dimensional object, so that the strength of the three-dimensional object in the vertical direction is enhanced, the connection strength between the forming layers of the printed three-dimensional object is improved, and the overall strength of the printed three-dimensional object is improved.
Description
Technical Field
The utility model belongs to the technical field of three-dimensional printing and specifically relates to a three-dimensional printer and utilize three-dimensional object that this three-dimensional printer printed is related to.
Background
A three-dimensional printer is an apparatus for printing a three-dimensional object by using a rapid prototyping technique, which prints the three-dimensional object layer by using a material such as plastic or metal powder based on a digital model. The three-dimensional printing process is firstly modeled by Computer Aided Design (CAD) or computer animation modeling software, then the built three-dimensional model is divided into sections layer by layer, and a processing path is obtained according to the information of the analyzed sections, thereby guiding a printer to print layer by layer. According to different working principles, the rapid prototyping technology utilized by the method comprises fused deposition modeling, selective laser sintering modeling, photocuring modeling and the like.
As a representative three-dimensional printing technology, Fused Deposition Modeling (FDM) is a process for forming a three-dimensional solid model by stacking and stacking molten filament materials, and mainly includes passing a linear filament material through a high-temperature nozzle, extruding the molten material through a nozzle outlet by continuous extrusion of the filament material, and stacking the molten material layer by layer to form a three-dimensional object. Because of the adoption of the layered stacking method, the printing and forming time is generally long. The printed layers are only bonded by molten materials and then cooled, and the printed objects have lower strength due to the difference of the temperature of the materials between the layers. And local details among the layers are easy to separate, and the layers are not adhered into a whole.
At present, materials such as carbon fiber and the like are added in fused deposition modeling printing to increase the strength of a printed object, but at present, the addition of the carbon fiber materials is only added between printing layers, and the problems of layering between adjacent layers and the strength in the layer thickness direction are still not solved.
Disclosure of Invention
The utility model aims at providing a three-dimensional printer improves the joint strength who prints between each shaping layer of three-dimensional object, aims at improving the bulk strength who prints three-dimensional object.
The utility model aims at providing an utilize three-dimensional object of above-mentioned three-dimensional inkjet printer printing, improve the joint strength who prints between each shaping layer of three-dimensional object to improve the bulk strength who prints three-dimensional object.
In order to achieve the first object, the present invention provides a three-dimensional printer, including: the printing platform is used for bearing a three-dimensional object; a first material print head for extruding a first material to print a three-dimensional object layer by layer on a print platform; a laser punch for creating a connecting position hole in a molded layer of the three-dimensional object, the connecting position hole extending in a depth direction at least between two adjacent molded layers, and the connecting position hole having a depth greater than a thickness of one molded layer; a second material print head for filling the connection position hole with a second material; and the heating device is used for heating the first material on the printing platform.
According to the scheme, the three-dimensional printer utilizes the laser puncher to generate the connecting position holes on the forming layers of the three-dimensional object, and the connecting position holes are filled with the second material, namely, the reinforcing structure is embedded between the forming layers inside the printed three-dimensional object, so that the phenomenon that the layers of the three-dimensional object are easily layered is effectively avoided, the strength of the three-dimensional object in the vertical direction is enhanced, the connecting strength between the forming layers of the printed three-dimensional object is improved, and the overall strength of the printed three-dimensional object is improved.
The further proposal is that the depth of the connecting position hole is larger than the thickness of the two molding layers.
Further, the depth of the connecting position hole is smaller than the thickness of the three molding layers.
In a further embodiment, the second material and the connection position hole form a recessed position at an end close to the second material print head, the recessed position is recessed in a direction away from the second material print head, and the recessed position is filled with the first material.
In a further embodiment, the particle diameter or particle length of the second material is greater than the thickness of one of the molding layers.
In a further aspect, the second material is one of a carbon fiber material, a metal powder material, a light-cured material, a short fiber material, and a ceramic material.
Still further, the connection position hole is located inside the three-dimensional object.
In a further embodiment, the depth direction of the connection position hole is perpendicular to the printing platform.
In order to realize foretell second purpose, the utility model provides a three-dimensional object prints the acquisition through three-dimensional printer, and three-dimensional object includes shaping layer and reinforcing structure, and reinforcing structure is located three-dimensional object's inside to two-layer shaping layer is being connected at least to reinforcing structure.
According to the scheme, the reinforcing structure is embedded in the three-dimensional object and is at least connected with the two forming layers, so that the phenomenon that the layers of the three-dimensional object are easily layered is effectively avoided, the strength of the three-dimensional object in the vertical direction is enhanced, the connection strength between the forming layers of the printed three-dimensional object is improved, and the overall strength of the printed three-dimensional object is improved.
Drawings
Fig. 1 is a structural diagram of a three-dimensional object on a printing platform in an embodiment of the three-dimensional printer of the present invention.
Fig. 2 is a cross-sectional view of the three-dimensional printer according to the embodiment of the present invention in a first operation state.
Fig. 3 is a cross-sectional view of a second working state of the embodiment of the three-dimensional printer according to the present invention.
Fig. 4 is a third working state cross-sectional view of the embodiment of the three-dimensional printer of the present invention.
Fig. 5 is a cross-sectional view of a fourth operating state of the embodiment of the three-dimensional printer according to the present invention.
Fig. 6 is a cross-sectional view of a fifth operating state of the embodiment of the three-dimensional printer according to the present invention.
Fig. 7 is a sectional view of a sixth operating state of the embodiment of the three-dimensional printer according to the present invention.
Fig. 8 is a sectional view of a seventh operating state of the embodiment of the three-dimensional printer according to the present invention.
Fig. 9 is an enlarged view at a in fig. 8.
Fig. 10 is a flowchart illustrating a printing method of the three-dimensional printer according to an embodiment of the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Three-dimensional printer embodiment:
referring to fig. 1 to 4 and 9, the three-dimensional printer includes a printing platform 1, a first material printing head 3, a laser punch 4, a second material printing head 5 and a heating device (not labeled), the printing platform 1 is used for bearing a printed three-dimensional object 2, the first material printing head 3 is used for extruding a first material to print the three-dimensional object 2 layer by layer on the printing platform 1, the laser punch 4 is used for generating a connecting position hole 22 on a molding layer 21 of the three-dimensional object 2, the connecting position hole 22 extends at least between two adjacent molding layers 21 in a depth direction, and the depth of the connecting position hole 22 is larger than the thickness of one molding layer 21, preferably, the depth of the connecting position hole 22 is larger than the thickness of two molding layers 21 and smaller than the thickness of three molding layers 21. The connection position holes 22 of the present embodiment are located inside the three-dimensional object 2, and the depth direction of the connection position holes 22 may be perpendicular to the printing platform 1.
The second material print head 5 is used to fill the connection position hole 22 with the second material 23, in this embodiment, the second material 23 and the connection position hole 22 form a concave position 24 at an end close to the second material print head 5, the concave position 24 is concave in a direction away from the second material print head 5, and the concave position 24 can be filled with the first material. The particle diameter or particle length of the second material 23 is larger than the thickness of one of the molding layers 21, and preferably, the second material 23 is one of a carbon fiber material, a metal powder material, a light-curable material, a short fiber material, and a ceramic material. The heating device of the present embodiment is used to heat the first material on the printing platform 1.
Referring to fig. 2-7, after the first material print head 3 is controlled to extrude the first material to print the three-layer molded layer 21 on the printing platform 1, the laser punch 4 starts to create a plurality of connection location holes 22 in the third molded layer 21 until the connection location holes 22 extend through the third and second molded layers 21 and to the first molded layer 21, i.e., the molded layer 21 adhered to the printing platform 1, so that the depth of the connection location holes 22 is greater than the thickness of the two-layer molded layer 21 and less than the thickness of the three-layer molded layer 21. Subsequently, the second material print head 5 is filled with the second material 23 for each of the connection position holes 22, and a recessed position 24 is formed at an end near the second material print head 5. The filling of the connection position holes 22 with the second material 23 is completed and the first material print head 3 is then controlled to extrude the first material to print a fourth molded layer 21 on the third molded layer 21, wherein the first material in the fourth molded layer 21 will be embedded into the recessed locations 24. Subsequently, the laser punch 4 starts to create a plurality of connection-location holes 22 in the fourth molding layer 21, the positions of these newly created connection-location holes 22 being offset from the positions of the previously created connection-location holes 22, the newly created connection-location holes 22 extending through the fourth and third molding layers 21 and to the second molding layer 21. The second material print head 5 is then filled with the second material 23 for each newly created connection location hole 22 and a recessed location 24 is formed near one end of the second material print head 5. The three-dimensional object 2 is printed in a repeated and cyclic mode, the second material 23 is connected in an embedded mode between layers in the three-dimensional object 2, the phenomenon that the layers of the three-dimensional object 2 are prone to layering is effectively avoided, the strength of the three-dimensional object 2 in the vertical direction is enhanced, accordingly, the connection strength between the forming layers 21 of the printed three-dimensional object 2 is improved, and the overall strength of the printed three-dimensional object 2 is improved.
The embodiment of the printing method of the three-dimensional printer comprises the following steps:
with the application of the above three-dimensional printer embodiment, referring to fig. 2 to 10, the printing method of the three-dimensional printer of this embodiment includes the following steps.
First, a computer solid model building step S10 of the three-dimensional object is performed, that is, building of a computer solid model of the three-dimensional object 2 to be printed is performed by various modeling software, and simultaneously designing the position of the internal reinforcing structure of the three-dimensional object 2, that is, the arrangement position of the connection position holes 22 filled with the second material 23 between the connection molding layers 21 is designed.
Next, a slicing and layering step S20 is performed to perform slicing and layering processing based on the created computer solid model, that is, the created computer solid model is "partitioned" into layer-by-layer printing sections.
Subsequently, performing the get model per layer molding information step S30, the three-dimensional printer obtains the printed molding information for each layer of the model by wire or wirelessly, and the connection location holes 22 generate information that fills the connection location holes 22 with the second material 23.
Further, a step S40 of printing the three-dimensional object is executed, and the three-dimensional object 2 is printed layer by layer on the printing platform 1 by the first material printing head 3 according to the set scheme with the first material. Specifically, the first material print head 3 extrudes the first material to print the three-layer molded layer 21 on the printing platform 1.
Further, a punching step S50 is performed to create connection location holes 22 in the molding layer 21 by the laser punch 4 according to a set scheme, specifically, the laser punch 4 starts to create a plurality of connection location holes 22 in the third molding layer 21 until the connection location holes 22 penetrate through the third and second molding layers 21 and extend to the first molding layer 21, i.e., the molding layer 21 adhered to the printing platform 1, so that the depth of the connection location holes 22 is greater than the thickness of the two-layer molding layer 21 and less than the thickness of the three-layer molding layer 21.
Further, a step S60 of printing an enhanced structure is executed, in which the second material print head 5 fills the connection position holes 22 with the second material 23 according to the set scheme, and the heating device heats the first material on the printing platform 1. Specifically, the second material print head 5 is filled with the second material 23 for each of the connection position holes 22, and a recessed position 24 is formed at an end near the second material print head 5.
And then repeatedly looping the step S40 to the step S60 until the printing of the three-dimensional object 2 is finished.
According to the printing method of the three-dimensional printer, the reinforcing structures are embedded between the forming layers 21 in the printed three-dimensional object 2, the phenomenon that the layers of the three-dimensional object 2 are easily layered is effectively avoided, and the strength of the three-dimensional object 2 in the vertical direction is enhanced, so that the connection strength between the forming layers 21 of the printed three-dimensional object 2 is improved, and the overall strength of the printed three-dimensional object 2 is improved.
Three-dimensional object embodiments:
the three-dimensional object 2 comprises the forming layers 21 and the reinforcing structure 23, the reinforcing structure 23 is located inside the three-dimensional object 21, and the reinforcing structure 23 is at least connected with the two forming layers 21, so that the phenomenon that the layers of the three-dimensional object 2 are easily layered is effectively avoided, the strength of the three-dimensional object 2 in the vertical direction is enhanced, the connection strength between the forming layers 21 of the three-dimensional object 2 is improved, and the overall strength of the three-dimensional object 2 is improved.
Above embodiment is the preferred example of the utility model, and not the restriction the utility model discloses the range of implementing, the event all according to the utility model discloses the equivalent change or the decoration that structure, characteristic and principle were done of application for patent scope all should be included in the utility model discloses the patent application scope.
Claims (9)
1. A three-dimensional printer comprising:
the printing platform is used for bearing a three-dimensional object;
characterized in that, the three-dimensional printer still includes:
a first material print head for extruding a first material to print the three-dimensional object layer by layer on the print platform;
a laser punch for creating a connecting location hole in a profiled layer of the three-dimensional object, the connecting location hole extending in a depth direction at least between two adjacent profiled layers and having a depth greater than the thickness of one of the profiled layers;
a second material print head for filling the connection position hole with a second material;
a heating device for heating the first material on the printing platform.
2. The three-dimensional printer according to claim 1, characterized in that:
the depth of the connecting position hole is larger than the thickness of the two molding layers.
3. The three-dimensional printer according to claim 2, characterized in that:
the depth of the connecting position hole is smaller than the thickness of the three molding layers.
4. The three-dimensional printer according to claim 1, characterized in that:
the second material and the connecting position hole form a concave position at one end close to the second material printing head, the concave position is concave towards the direction far away from the second material printing head, and the concave position is filled with the first material.
5. The three-dimensional printer according to claim 1, characterized in that:
the particle diameter or particle length of the second material is greater than the thickness of one of the shaping layers.
6. The three-dimensional printer according to claim 5, characterized in that:
the second material is one of a carbon fiber material, a metal powder material, a light curing material, a short fiber material and a ceramic material.
7. The three-dimensional printer according to any one of claims 1 to 6, characterized in that:
the connection position hole is located inside the three-dimensional object.
8. The three-dimensional printer according to claim 7, characterized in that:
the depth direction of the connecting position hole is perpendicular to the printing platform.
9. The three-dimensional object is obtained by printing through a three-dimensional printer, and is characterized in that:
the three-dimensional object comprises a shaped layer and a reinforcing structure, the reinforcing structure being located inside the three-dimensional object and the reinforcing structure connecting at least two of the shaped layers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920689953.1U CN209971547U (en) | 2019-05-13 | 2019-05-13 | Three-dimensional printer and three-dimensional object |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920689953.1U CN209971547U (en) | 2019-05-13 | 2019-05-13 | Three-dimensional printer and three-dimensional object |
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| CN209971547U true CN209971547U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968660A (en) * | 2019-05-13 | 2019-07-05 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer, Method of printing and three-dimension object |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968660A (en) * | 2019-05-13 | 2019-07-05 | 珠海天威飞马打印耗材有限公司 | Three-dimensional printer, Method of printing and three-dimension object |
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Effective date of registration: 20220913 Address after: Room 103-036, 1st Floor, Building 1, No. 18, Futian Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 (centralized office area) Patentee after: Zhuhai Tianwei Additives Co.,Ltd. Address before: 519060 Guangdong province Zhuhai Nanping Science and Technology Industrial Park, ping North Road No. 32 Patentee before: PRINT RITE UNICORN IMAGE PRODUCTS Co.,Ltd. OF ZHUHAI |