CN217512861U

CN217512861U - Supporting structure for 3D printing

Info

Publication number: CN217512861U
Application number: CN202221259590.6U
Authority: CN
Inventors: 王栋; 沈震; 王卫兴; 熊刚; 李彦鹏; 高行; 董西松; 陆宽; 王庆; 万力
Original assignee: Shiwei Guangdong Technology Co ltd; Dongguan Zhongke Cloud Computing Research Institute
Current assignee: Shiwei Guangdong Technology Co ltd; Dongguan Zhongke Cloud Computing Research Institute
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-09-30
Anticipated expiration: 2032-05-23

Abstract

The utility model relates to a 3D prints technical field, discloses a bearing structure that 3D printed. The support structure comprises a base, a support plate and a plurality of supports, wherein a first surface of the support plate is connected with the base; one end of the supporting piece is connected with the second surface of the supporting plate, and the other end of the supporting piece is connected with the product; the shape of the second surface of the support plate corresponds to the shape of the contact surface of the product with the support structure. The length of the supporting piece connected between the supporting plate and the product is basically consistent, the supporting strength of the supporting piece and the stability of the whole supporting structure are improved, and meanwhile, the risk that the supporting piece is broken due to factors such as a scraper and the like in the printing process due to overlong length is reduced, so that the printing stability and the printing quality are improved.

Description

Supporting structure for 3D printing

Technical Field

The utility model relates to a 3D prints technical field, especially relates to a bearing structure that 3D printed.

Background

In the prior art, a main flow of 3D printing is divided into three steps, the first step is modeling, the second step is adding support and slicing, and the third step is handing over to a 3D printer for printing, wherein the support addition is an important ring for ensuring that the model can be successfully printed. In the support of adding at present, support mainly by the bracing piece one by one and constitute, but when faced some special printing scenes, if just putting formula photocuring 3D and printing, because scraper mechanism can be at the model with support the top and do reciprocating motion, to the model or support the application of force, ordinary support can't satisfy the demand in the aspect of intensity, especially when the bracing piece is too long, can lead to the unstable problem of bracing piece more serious, the bracing piece breaks easily to influence printing quality, lead to even printing the failure.

SUMMERY OF THE UTILITY MODEL

A primary objective of the utility model is to provide a 3D prints bearing structure, aim at solving the bearing structure's that 3D printed support intensity low and support piece's length overlength and lead to whole bearing structure's poor stability's technical problem.

In order to achieve the above object, the utility model provides a support structure that 3D printed, support structure includes:

a base;

a support plate, a first surface of the support plate being connected to the base;

a plurality of supporting members, one end of which is connected with the second surface of the supporting plate and the other end of which is connected with the product;

the shape of the second surface of the support plate corresponds to the shape of the contact surface of the product with the support structure.

Further, in an embodiment, the supporting member includes a first prism table, a second prism table and a supporting pillar, the upper bottom surface of the first prism table is connected to the product, the lower bottom surface of the first prism table is disposed on one end of the supporting pillar, the other end of the supporting pillar is disposed on the lower bottom surface of the second prism table, and the upper bottom surface of the second prism table is disposed on the second surface.

Further, in an embodiment, the support member further includes a first spherical body and a second spherical body, the first spherical body is disposed between the first prism table and the support column, and the second spherical body is disposed between the second prism table and the support column.

Further, in an embodiment, the base includes a plurality of ribs, and each of the plurality of ribs is vertically disposed on the first surface.

Further, in one embodiment, the ribs are equally spaced.

Further, in an embodiment, the base further includes a plurality of connecting members, and the connecting members are attached and fixed between two adjacent rib plates.

Further, in one embodiment, the connector is a prism.

Further, in one embodiment, the support posts are prisms.

Further, in one embodiment, the support post has a cross-section with a longest diagonal length of 1mm to 10 mm.

Further, in an embodiment, the material of the support structure is ceramic slurry.

In the technical proposal provided by the utility model, a plurality of supporting pieces are arranged on the second surface of the supporting plate by connecting the first surface of the supporting plate with the base, wherein the first surface and the second surface are opposite faces and connect one end of the support member with the product, thereby realizing that the supporting structure is used for supporting the product, and simultaneously, the shape of the second surface of the supporting plate and the shape of the contact surface of the product and the supporting structure are correspondingly arranged, so that the length of the supporting piece connected between the supporting plate and the product is basically consistent, the supporting strength of the supporting piece and the stability of the whole supporting structure are improved, meanwhile, the risk that the supporting piece is broken due to factors such as a scraper and the like in the printing process due to overlong length is reduced, so that the printing stability and the printing quality are improved.

Drawings

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is a schematic view of a combination of a 3D printed product and a support structure according to an embodiment of the invention;

fig. 2 is a schematic structural view of a support structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a supporting member according to an embodiment of the present invention.

10, a support structure; 11. a base; 111. a rib plate; 112. a connecting member; 12. a support plate; 121. a first surface; 122. a second surface; 13. a support member; 131. a first prismatic table; 132. a second prismatic table; 133. a support pillar; 134. a first sphere; 135. a second sphere; 14. producing a product; 141. the contact surface of the product in contact with the support structure.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for purposes of description only. In the description of the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implying any indication of the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and any variations thereof, are intended to cover a non-exclusive inclusion, which may have the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-3, an embodiment of the present invention discloses a support structure 10 for 3D printing, the support structure 10 includes a base 11, a support plate 12 and a plurality of support members 13, a first surface 121 of the support plate 12 is connected to the base 11; one end of the support member 13 is connected to the second surface 122 of the support plate 12, and the other end is connected to the product 14; the shape of the second surface 122 of the support plate 12 corresponds to the shape of the contact surface of the product 14 with the support structure 10. Specifically, the first surface 121 and the second surface 122 are opposite surfaces; the support structure 10 is formed prior to printing the 3D product 14, and the 3D product 14 is printed on the support structure 10. The material of the support structure 10 may be the material of the printed product 14, and the raw material of the printed product 14 may be ceramic slurry, which is a mixture of ceramic powder and resin; in the case that the cross-sectional sizes of the plurality of supporting members 13 are the same and the lengths thereof are substantially the same, the longer the length of the supporting member 13 is, the lower the supporting strength thereof is; as the length of the supporting member 13 is shorter, the strength of its support is stronger; the plurality of supporting members 13 have the same size of cross section, and when the length of the plurality of supporting members 13 is not uniform or the difference in length is large, the supporting strength thereof is lower.

In the present embodiment, the shape of the second surface 122 of the supporting plate 12 corresponds to the shape of the contact surface 141 of the product 14 with the supporting structure 10, that is, when the second surface 122 of the supporting plate 12 is in a concave state, the contact surface 141 of the product 14 with the supporting structure 10 is also in a concave state, when the second surface 122 of the supporting plate 12 is in a planar state, the contact surface 141 of the product 14 with the supporting structure 10 is also in a planar state, and when the second surface 122 of the supporting plate 12 is in a convex state, the contact surface 141 of the product 14 with the supporting structure 10 is also in a convex state, so that the lengths of the plurality of supporting members 13 between the product 14 and the supporting plate 12 are substantially uniform, and the lengths of the supporting members 13 are substantially uniform, and therefore, the lengths of the supporting members 13 can be set to be shorter, therefore, the supporting strength of the supporting part 13 and the stability of the whole supporting structure 10 are improved, and meanwhile, the risk that the supporting part 13 is broken due to factors such as a scraper and the like in the printing process due to too long length is reduced, so that the printing stability and the printing quality are improved. The support structure 10 supports the product 14 by placing the support plate 12 between the base 11 and the support 13 and attaching the product 14 to the support 13.

In one embodiment, the supporting member 13 includes a first prism table 131, a second prism table 132 and a supporting column 133, wherein an upper bottom surface of the first prism table 131 is connected to the product 14, a lower bottom surface of the first prism table 131 is disposed on one end of the supporting column 133, another end of the supporting column 133 is disposed on a lower bottom surface of the second prism table 132, and an upper bottom surface of the second prism table 132 is disposed on the second surface 122; the support columns 133 are prisms, and the longest diagonal length of the cross section of each support column 133 is 1mm-10 mm. Specifically, the bottom surface with the shortest bottom perimeter of the prismatic table is an upper bottom surface, and the bottom surface with the longest bottom perimeter of the prismatic table is a lower bottom surface; the first prism table 131, the second prism table 132 and the supporting column 133 specifically include, but are not limited to, three arrangements, where the first prism table 131 and the second prism table 132 are respectively vertically disposed at two ends of the supporting column 133; or the first prism table 131 and the second prism table 132 are respectively arranged at two ends of the supporting column 133 in an inclined manner; or the first prism table 131 is vertically arranged at one end of the supporting column 133, and the second prism table 132 is obliquely arranged at the other end of the supporting column 133.

In the present embodiment, it may be preferable that the longest diagonal length of the cross section of the supporting column 133 is 10mm, and the prism is a decaprism, so that the prism approaches a prism of a cylinder.

In this embodiment, the supporting columns 133 are configured as approximately cylindrical prisms, and the first prism table 131 and the second prism table 132 are configured as approximately circular truncated cones, so that the amount of point calculation of the supporting columns 133 by a computer in the 3D printing apparatus can be reduced, thereby reducing the time for the computer to generate the supporting structure 10, and meanwhile, the longest diagonal length of the cross section of the supporting columns 133 is the diameter of the approximately cylindrical prisms. By providing the support member 13 in three parts, not only the contact area between the products 14 and the support columns 133 is reduced, thereby facilitating the removal of the subsequently printed products 14 from the support structure 10, but also the support strength of the support structure 10 can be enhanced. Connecting the upper bottom surface of the first ledge 131 to the product 14, wherein the upper bottom surface of the first ledge 131 is the shortest because of the shortest bottom perimeter, so that the area of the upper bottom surface of the first ledge 131 is the smallest, thereby reducing the contact area between the support 13 and the product 14, and facilitating the removal of the subsequently printed product 14 from the support structure 10; and the supporting structure 10 is formed by solidifying the ceramic slurry through photo-curing, the ceramic slurry has sufficient hardness to support the printed product 14, and at the same time, the ceramic slurry has flexibility to facilitate the removal of the printed product 14 from the supporting structure 10.

In one embodiment, the support member 13 further comprises a first ball 134 and a second ball 135, the first ball 134 is disposed between the first prism table 131 and the support post 133, and the second ball 135 is disposed between the second prism table 132 and the support post 133. Specifically, first spheroid with the second spheroid includes but not only limits to for the spheroid, can also with first spheroid with the second spheroid all sets up to the polyhedral spheroid, and the polyhedral spheroid is a transition geometry between tangent plane spheroid and the spheroid, and the more the quantity of tangent plane is convenient for more be close the spheroid, the polyhedral spheroid comprises a plurality of isosceles trapezoid's tangent plane, is close the spheroid, and the polyhedral spheroid can reduce the computer among the 3D printing apparatus to the point location calculation volume of support piece 13 to reduce the computer and generate bearing structure 10's time.

In this embodiment, the first spherical body 134 is disposed between the first prism table 131 and the supporting column 133, and the first spherical body 134 makes the first prism table 131 and the supporting column 133 connected more firmly; by disposing the second spherical body 135 between the second prism table 132 and the support post 133, the second prism table 132 and the support post 133 can be connected more firmly, and the second prism table 132 can be prevented from being broken due to an excessively large inclination angle when the second prism table 132 and the support post 133 are obliquely disposed.

In an embodiment, the base 11 includes a plurality of ribs 111 disposed at equal intervals and a plurality of connecting members 112, the plurality of ribs 111 are vertically disposed on the first surface 121, and the connecting members 112 are attached and fixed between two adjacent ribs 111, where the connecting members 112 are prisms. Specifically, the connecting member 112 is a prism similar to a cylinder, so that the calculation amount of the point positions of the connecting member 112 by a computer in the 3D printing device is reduced, and the time for generating the support structure 10 by the computer is reduced.

In this embodiment, the base 11 is provided with a plurality of ribs 111 distributed at equal intervals, so as to save supporting materials and reduce cost, and meanwhile, a plurality of connecting members 112 are arranged between two adjacent ribs 111 to enhance the stability between the two ribs 111, so that the supporting structure 10 not only saves supporting materials, but also enhances the supporting strength and stability of the supporting structure 10, thereby improving the stability and quality of printing.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A3D printed support structure for supporting a 3D printed product, the support structure comprising:

a base;

2. The support structure of claim 1, wherein the support member comprises a first prism table, a second prism table, and a support column, wherein an upper bottom surface of the first prism table is connected to the product, a lower bottom surface of the first prism table is disposed on one end of the support column, another end of the support column is disposed on a lower bottom surface of the second prism table, and an upper bottom surface of the second prism table is disposed on the second surface.

3. The support structure of claim 2, wherein the support further comprises a first sphere disposed between the first prism table and the support column and a second sphere disposed between the second prism table and the support column.

4. The support structure of claim 1, wherein the base includes a plurality of ribs, each of the plurality of ribs being disposed vertically on the first surface.

5. The support structure of claim 4, wherein the ribs are equally spaced.

6. The support structure of claim 5, wherein the base further comprises a plurality of connectors, and the connectors are fit and fixed between two adjacent ribs.

7. The support structure of claim 6, wherein the connectors are prisms.

8. The support structure of claim 2, wherein the support columns are prisms.

9. The support structure of claim 8, wherein the longest diagonal length of the cross-section of the support column is 1mm-10 mm.

10. The support structure of any one of claims 1 to 9, wherein the material of the support structure is a ceramic slurry.