CN210011336U - Bidirectional powder spreading structure of 3D printing equipment suitable for multiple materials - Google Patents
Bidirectional powder spreading structure of 3D printing equipment suitable for multiple materials Download PDFInfo
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- CN210011336U CN210011336U CN201920651089.6U CN201920651089U CN210011336U CN 210011336 U CN210011336 U CN 210011336U CN 201920651089 U CN201920651089 U CN 201920651089U CN 210011336 U CN210011336 U CN 210011336U
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Abstract
The utility model discloses a two-way shop powder structure of 3D printing apparatus and method suitable for many materials, it includes shaping jar, scraper and supplies the powder jar, the scraper is located shaping jar and the top that supplies the powder jar, it is located to supply the powder jar one side of shaping jar is still including being located the powder jar and the excessive powder jar of returning that shaping jar opposite side set gradually, shaping jar, the port that supplies powder jar, returns the powder jar and excessive powder jar are on the coplanar, just the scraper is close to in this plane. The utility model discloses the structure adopts two-way shop powder mode, is applicable to any kind of material, and the powder volume of sending of control material that also can be accurate has not only improved the work efficiency of equipment, still is convenient for clear up, change material.
Description
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to a bidirectional powder laying structure of 3D printing equipment suitable for multiple materials.
Background
The 3D printing equipment is also called a three-dimensional printer, is a material increase manufacturing technology, namely a machine of a rapid prototyping technology, and is a technology which is based on a digital model file, applies a special adhesive material such as wax, powdered metal or plastic and the like, and manufactures a three-dimensional object by printing a plurality of layers of adhesive materials.
With the rapid development of 3D printing technology, the 3D printing technology using nylon powder and metal powder as raw materials obtains more and more attention. The 3D printing technique, also called Selective Laser Sintering (SLS), using nylon powder as a material, is to selectively sinter the powder layer by laser, and superimpose the powder layer by layer to produce a three-dimensional solid part of a predetermined shape. The main principle of the 3D printing technology using metal powder as a material is to uniformly accumulate the metal powder layer by layer in a forming cylinder, scan a cross section area by laser under the control of a computer, bond or melt the metal powder in the scanned area to obtain a single-layer cross section shape of a formed part, then descend the forming cylinder by a certain height and repeat the above processes until the forming of the part is completed.
In the forming process, the powder spreading mode is one of main factors influencing forming precision, the size of the powder spreading amount, the characteristics of a powder material, whether a powder spreading layer is uniform and the like are directly determined by the powder spreading mode, and the stability of equipment is influenced by unsmooth powder supply (such as aluminum alloy) of the powder feeding and falling due to the characteristics of the material, so that how to realize quick, effective and accurate powder spreading is a research hotspot in the field of 3D printing at present.
Disclosure of Invention
In order to solve the technical problems, a bidirectional powder spreading structure and a bidirectional powder spreading method for multi-material 3D printing equipment are provided, the structural design is reasonable, the bidirectional powder spreading structure is suitable for any material, and the powder feeding amount of the material can be accurately controlled.
In order to achieve the purpose, the technical scheme of the invention is as follows:
two-way shop powder structure of 3D printing apparatus suitable for many materials, it includes shaping jar, scraper and supplies the powder jar, the scraper is located the shaping jar with supply the top of powder jar, supply the powder jar to be located one side of shaping jar, still including being located the powder jar and the excessive powder jar of returning that the shaping jar opposite side set gradually, the shaping jar, supply the port of powder jar, returning the powder jar and overflowing the powder jar on the coplanar, just the scraper is close to in this plane.
Furthermore, the powder returning cylinder comprises a powder returning cylinder body and a lifting device capable of enabling the cylinder body to move up and down, and the lifting device comprises a push rod arranged on the gravity center position of the cylinder body and used for pushing the cylinder body to move up and down.
Further, the powder overflowing cylinder comprises a powder overflowing cylinder body which is used for collecting redundant powder.
The method is realized by adopting a bidirectional powder paving structure of 3D printing equipment suitable for multiple materials, and comprises the following steps: 1) the powder supply cylinder is lifted by more than the amount of the powder for secondary powder paving, the forming cylinder is lowered by one working layer, the powder return cylinder is lowered, the scraper moves rightwards at the moment, the forming cylinder is fully paved with the powder, the powder return cylinder stores the amount of the powder for secondary powder paving, the redundant powder falls into the powder overflow cylinder, and the laser starts scanning;
2) after the laser scanning is finished, the forming cylinder descends a working layer again, the powder supply cylinder descends, the powder return cylinder ascends, the scraper moves leftwards at the moment, the forming cylinder is fully paved with powder, redundant powder falls into the right side of the powder supply cylinder, and the laser scans again;
3) and repeating the step 1) 2) until the laser scanning of all the working layers is completed.
Through the technical scheme, the bidirectional powder paving structure and the method thereof suitable for the multi-material 3D printing equipment are in a lower powder feeding mode, are suitable for any material, and can accurately control the powder feeding amount of the material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bidirectional powder spreading structure of a 3D printing apparatus suitable for multiple materials according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes the embodiments of the present invention in further detail with reference to the schematic drawings.
Referring to fig. 1, 3D printing apparatus two-way shop's powder structure suitable for many materials, it includes forming cylinder 1, scraper 2 and supplies powder jar 3, scraper 2 is located forming cylinder 1 and the top that supplies powder jar 3, it is located to supply powder jar 3 one side of forming cylinder 1 still including being located powder jar 4 and the excessive powder jar 5 of returning that 1 opposite side of forming cylinder set gradually, forming cylinder 1, supply powder jar 3, return the port of powder jar 4 and excessive powder jar 5 on the coplanar, just scraper 2 is close to this plane.
With reference to fig. 1, the powder returning cylinder 4 includes a powder returning cylinder and a lifting device for moving the cylinder up and down, and the lifting device includes a push rod mounted at the center of gravity of the cylinder for pushing the cylinder up and down.
With continued reference to fig. 1, the spill jar 5 includes a spill jar body for collecting excess powder.
The method is realized by adopting a bidirectional powder paving structure of 3D printing equipment suitable for multiple materials, and comprises the following steps: 1) the powder supply cylinder 3 is lifted by more than the amount of the powder spread for the second time, the forming cylinder 1 is lowered by one working layer, the powder return cylinder 4 is lowered, the scraper 2 moves rightwards at the moment, the forming cylinder 1 is fully spread with the powder, the powder return cylinder 4 stores the amount of the powder spread for the second time, the redundant powder falls into the powder overflow cylinder 5, and the laser starts scanning;
2) after the laser scanning is finished, the forming cylinder 1 descends one working layer again, the powder supply cylinder 3 descends, the powder return cylinder 4 rises, the scraper 2 moves leftwards at the moment, the forming cylinder 1 is fully paved with powder, redundant powder falls into the right side of the powder supply cylinder 3, and the laser scans again;
3) and repeating the step 1) 2) until the laser scanning of all the working layers is completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (3)
1. Two-way shop powder structure of 3D printing apparatus suitable for many materials, it includes shaping jar, scraper and supplies the powder jar, the scraper is located the shaping jar with supply the top of powder jar, supply the powder jar to be located one side of shaping jar, its characterized in that still including being located the powder jar and the excessive powder jar of returning that the shaping jar opposite side set gradually, the shaping jar, supply the port of powder jar, returning the powder jar and excessive powder jar on the coplanar, just the scraper is close to this plane.
2. The bidirectional powder spreading structure of the 3D printing equipment suitable for the multi-material according to claim 1, wherein the powder returning cylinder comprises a powder returning cylinder body and a lifting device capable of enabling the cylinder body to move up and down, and the lifting device comprises a push rod arranged on the position of the center of gravity of the cylinder body and used for pushing the cylinder body to move up and down.
3. The bi-directional powder spreading structure of the 3D printing device suitable for the multi-material according to claim 1, wherein the powder overflowing cylinder comprises a powder overflowing cylinder body for collecting the excessive powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651089.6U CN210011336U (en) | 2019-05-08 | 2019-05-08 | Bidirectional powder spreading structure of 3D printing equipment suitable for multiple materials |
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| CN201920651089.6U CN210011336U (en) | 2019-05-08 | 2019-05-08 | Bidirectional powder spreading structure of 3D printing equipment suitable for multiple materials |
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| CN210011336U true CN210011336U (en) | 2020-02-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027213A (en) * | 2019-05-08 | 2019-07-19 | 苏州中瑞智创三维科技股份有限公司 | 3D printing equipment two-way powder laying structure and its method suitable for more materials |
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- 2019-05-08 CN CN201920651089.6U patent/CN210011336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027213A (en) * | 2019-05-08 | 2019-07-19 | 苏州中瑞智创三维科技股份有限公司 | 3D printing equipment two-way powder laying structure and its method suitable for more materials |
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