Forming platform applied to 3D printing equipment and 3D printing equipment

Abstract

The utility model provides a forming platform applied to 3D printing equipment and the 3D printing equipment, and the forming platform comprises a base body part which is provided with a forming surface used for being connected with a target printing object; the first grain area is arranged on the first surface of the base body part, and the first surface forms a forming surface; the second grain area is arranged on the second surface of the base body part, and the first surface and the second surface are oppositely arranged. According to the technical scheme, the flatness of the forming platform can be conveniently guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and in particular to a molding platform applied to 3D printing equipment and 3D printing equipment. Background Art

[0002] With the continuous development of science and technology, the application scope of 3D printing technology in people's lives is becoming wider and wider. Among them, the light-curing printer is a device that can realize 3D printing, in which the molding platform is one of the important structures, and the target print object is connected to the molding surface of the molding platform. In 3D printing technology, there are certain requirements for the flatness of the molding platform, which will directly affect the quality of the target print object.

[0003] In this field, laser technology is usually used to create some laser lines on the molding surface of the molding platform, thereby changing the roughness of the molding surface, making the connection between the target print object and the molding platform more stable and preventing the target print object from detaching from the molding platform. However, since the laser will generate a certain amount of heat, the molding platform will be deformed to a certain extent, thereby affecting the flatness of the molding platform; therefore, after the laser lines are lasered on the molding surface, the staff needs to use sheet metal to correct the flatness of the molding platform again, thereby reducing the staff's efficiency. Therefore, there is a problem in this field that it is troublesome to correct the flatness of the molding platform again. Utility Model Content

[0004] The main purpose of the utility model is to provide a molding platform and a 3D printing device for use in a 3D printing device, so as to solve the problem in the related art that it is troublesome to re-calibrate the flatness of the molding platform.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a forming platform for a 3D printing device is provided, including: a base portion, having a forming surface for connecting a target printed object; a first textured area, arranged on a first surface of the base portion, the first surface forming the forming surface; a second textured area, arranged on a second surface of the base portion, the first surface and the second surface being arranged opposite to each other.

[0006] Furthermore, the first texture area is a first symmetrical structure and has a first symmetrical axis; the second texture area is a second symmetrical structure and has a second symmetrical axis, and the first symmetrical axis and the second symmetrical axis are located in a preset vertical plane.

[0007] Furthermore, the base portion is a third symmetrical structure and has a third symmetry axis, and the third symmetry axis is located in a preset vertical plane.

[0008] Further, the projection of the second texture area on the first preset horizontal plane is within the range of the projection of the first texture area on the first preset horizontal plane, and the vertical depth of the second texture area is greater than the vertical depth of the first texture area.

[0009] Furthermore, an outer contour of a projection of the first texture area on the second preset horizontal plane coincides with an outer contour of a projection of the first surface on the second preset horizontal plane.

[0010] Furthermore, the first texture area includes a plurality of sub-texture groups, and two adjacent sub-texture groups are arranged at intervals.

[0011] Furthermore, the distance between two adjacent sub-texture groups is between 0 mm and 3.8 mm; and / or the sub-texture groups are regular polygonal structures; and / or a plurality of sub-texture groups are arranged at equal intervals.

[0012] Furthermore, the forming platform is a plate-like structure, the sub-line group includes a plurality of first lines, and the plurality of first lines are arranged in parallel and extend along a first direction.

[0013] Furthermore, the distance between two adjacent first lines is between 0.09 mm and 0.3 mm; and / or the width of the first lines is between 0.03 mm and 0.1 mm; and / or the sub-line group also includes multiple second lines, the multiple second lines are arranged in parallel and extend along a second direction, and the second direction is arranged at an angle to the first direction.

[0014] Furthermore, a drainage hole is provided on the base part, and the drainage hole runs through the second surface and the first surface; and / or, the base part is made of stainless steel.

[0015] According to another aspect of the utility model, a 3D printing device is provided, including a molding platform, and the molding platform is the above-mentioned molding platform.

[0016] By applying the technical solution of the utility model, the base part has a molding surface for connecting the target printed object, the first surface of the base part forms the molding surface, the first texture area is arranged on the first surface of the base part, and the arrangement of the first texture area makes the first surface form a concave-convex structure. When 3D printing is performed, the target printed object is formed and connected to the first surface. Compared with the solution of a smoother first surface, the target printed object is more firmly connected to the first texture area, thereby reducing the possibility of the target printed object being disconnected from the first surface, thereby ensuring the smooth progress of 3D printing; the first surface and the second surface are two opposite planes of the base part, and the second texture area is arranged on the second surface of the base part. When When the first texture area is formed on the first surface by laser or other technologies, the base part will be deformed in the direction of the second surface, and then the second texture area is formed on the second surface by laser or other technologies, so that the base part will be deformed in the direction of the first surface, thereby offsetting the deformation generated when the first texture area is formed, thereby ensuring the flatness of the forming platform, thereby ensuring the precise forming of the target print object. Compared with the solution of only setting the first texture area on the first surface, the use of the forming platform of the present application can save the staff from using sheet metal to correct the flatness of the forming platform again after the first texture area is manufactured, thereby improving the work efficiency of the staff. Therefore, the technical solution of the present application can effectively and conveniently ensure the flatness of the forming platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic front view of a first embodiment of a molding platform applied to a 3D printing device according to the utility model is shown;

[0019] Figure 2 Shows Figure 1 A rear view schematic diagram of a forming platform;

[0020] Figure 3 Shows Figure 1 An enlarged schematic diagram of a first texture area of ​​a forming platform;

[0021] Figure 4 An enlarged schematic diagram of a first texture area of ​​a second embodiment of a molding platform applied to a 3D printing device according to the utility model is shown;

[0022] Figure 5 A three-dimensional structural schematic diagram of a molding platform and a platform mounting structure according to an embodiment of a 3D printing device of the utility model is shown.

[0023] The above drawings include the following reference numerals:

[0024] D, the distance between two adjacent sub-texture groups;

[0025] 10. base portion; 11. first surface; 12. second surface;

[0026] 20, first grain area; 21, sub-grain group; 211, first grain; 212, second grain;

[0027] 30. Second grain area;

[0028] 40. Platform installation structure. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0032] like Figure 1 as well as Figure 2 As shown, the present application provides a molding platform applied to a 3D printing device. The first embodiment of the molding platform of the present application includes: a base portion 10, a first textured area 20, and a second textured area 30; the base portion 10 has a molding surface for connecting a target printed object; the first textured area 20 is arranged on a first surface 11 of the base portion 10, and the first surface 11 forms a molding surface; the second textured area 30 is arranged on a second surface 12 of the base portion 10, and the first surface 11 and the second surface 12 are arranged opposite to each other.

[0033] It should be noted that in this specific 3D printing technology, the first surface is the side of the base portion facing the exposure screen or material container of the 3D printing device (in this embodiment, the first surface 11 is also the lower surface of the base portion 10), and the first surface 11 of the base portion 10 forms a molding surface, and the 3D printed object is attached to the molding plane during the printing process.

[0034] By applying the technical solution of this embodiment, the base portion 10 has a molding surface for connecting the target printed object, the first surface 11 of the base portion 10 forms the molding surface, the first texture area 20 is arranged on the first surface 11 of the base portion 10, and the arrangement of the first texture area 20 makes the first surface 11 form a concave-convex structure. When 3D printing is performed, the target printed object is formed and connected to the first surface 11. Compared with the solution of a relatively smooth first surface 11, the target printed object is more firmly connected to the first texture area 20, thereby reducing the possibility of the target printed object being disconnected from the first surface 11, thereby ensuring the smooth progress of 3D printing; the first surface 11 and the second surface 12 are two opposite planes of the base portion 10, and the second texture area 30 is arranged on the base portion. On the second surface 12 of the substrate 10, when the first texture area 20 is formed on the first surface 11 by laser or other technologies, the base 10 will deform in the direction of the second surface 12, and then the second texture area 30 is formed on the second surface 12 by laser or other technologies, so that the base 10 will deform in the direction of the first surface 11, thereby offsetting the deformation generated when the first texture area 20 is formed, thereby ensuring the precise molding of the target printed object. Compared with the solution of only setting the first texture area 20 on the first surface 11, the use of the molding platform of this embodiment can save the staff from using sheet metal to correct the flatness of the molding platform again after the first texture area 20 is manufactured, thereby improving the work efficiency of the staff. Therefore, the technical solution of this embodiment can effectively and conveniently ensure the flatness of the molding platform.

[0035] It should be noted that the first texture area 20 and the second texture area 30 can be manufactured by laser engraving, etching, etc., and the present application does not specifically limit the manufacturing method of the texture area and the texture.

[0036] It should be noted that the phrase “when the first texture area 20 is formed on the first surface 11 by laser technology, the base portion 10 will be deformed in the direction toward the second surface 12” in this article means that the base portion 10 may be deformed vertically upward or in a direction having a certain angle with the vertical direction, but the overall deformation direction is toward the second surface 12; “the second texture area 30 is formed on the second surface 12 by laser technology, so that the base portion 10 will be deformed in the direction toward the first surface 11” means that the base portion 10 may be deformed vertically downward or in a direction having a certain angle with the vertical direction, but the overall deformation direction is toward the first surface 11; it can be seen that the staff can achieve the mutual offset of the deformation caused by the laser first texture area 20 and the deformation caused by the laser second texture area 30 by accurately calculating and controlling the depth, area, position and other parameters of the first texture area 20 and the second texture area 30, thereby achieving the effect of ensuring the flatness of the forming platform.

[0037] In addition, this article needs to explain the working principle of 3D printing of the 3D printing device with the molding platform of this embodiment: the 3D printing device includes a light source device, a material tray, a molding platform, a platform mounting structure and a lifting structure. The light source device is located below the material tray, and the light outlet of the light source device is arranged corresponding to the bottom of the material tray. The molding platform is located above the material tray and is connected to the lifting structure through the platform mounting structure. The movement of the lifting structure can drive the molding platform to move closer to or away from the material tray. The light emitted by the light source device irradiates the photosensitive resin material in the material tray, so that this part of the photosensitive resin material is cured at the corresponding position of the molding surface of the molding platform, thereby printing a layered solidified structure on the molding platform, and then stacking multiple layers of layered solidified structures to finally form a target printed object. Before 3D printing, the staff will accurately calculate the specific form of each layered solidified structure. Therefore, it is particularly important to ensure the flatness of the molding platform and the stability of the connection between the layered solidified structure and the molding platform.

[0038] like Figure 1 as well as Figure 2 As shown, the first texture area 20 is a first symmetrical structure and has a first symmetrical axis; the second texture area 30 is a second symmetrical structure and has a second symmetrical axis, and the first symmetrical axis and the second symmetrical axis are located in a preset vertical plane. Specifically, such an arrangement enables the deformation area generated when the first texture area 20 is laser-printed to correspond to the deformation area generated when the second texture area 30 is laser-printed, thereby ensuring the flatness of the molding platform.

[0039] In addition, the "preset vertical plane" in "the first axis of symmetry and the second axis of symmetry are located in the preset vertical plane" refers to a vertical plane and a plane having a certain angle with the vertical plane. It is an ideal state that the first axis of symmetry and the second axis of symmetry are located in the same vertical plane. However, due to reasons such as processing technology, the plane in which the first axis of symmetry and the second axis of symmetry are located may also have a certain angle with the vertical plane. The angle may be 0.5°, 1°, 2°, etc.

[0040] like Figure 1 as well as Figure 2 As shown, the base portion 10 is a third symmetrical structure and has a third symmetrical axis, and the third symmetrical axis is located in a preset vertical plane. Specifically, since it is necessary to maximize the use of the molding surface of the molding platform (that is, the first surface 11), the size of the target printed object formed on the first surface 11 is large enough, so that the third symmetrical axis is coplanar with the first symmetrical axis, so that the first texture area 20 is formed in the middle position of the first surface 11, so that the target printed object can also be connected to the middle position of the first surface 11, and similarly, the second symmetrical axis is also coplanar with the third symmetrical axis and the first symmetrical axis, so that the second texture area 30 is located in the middle position of the second surface 12.

[0041] like Figure 1 As shown, the outer contour of the projection of the first texture area 20 on the first preset horizontal plane coincides with the outer contour of the projection of the first surface 11 on the first preset horizontal plane. Specifically, such an arrangement enables the first texture area 20 to be arranged as fully as possible on the first surface 11, so that the target printed object is in contact with and connected to the first texture area 20 as much as possible, thereby ensuring the stability of the connection between the target printed object and the first surface 11, thereby reducing the possibility of the target printed object being disconnected from the first surface 11, and thus ensuring the smooth progress of 3D printing.

[0042] like Figure 1 as well as Figure 2 As shown, the projection of the second texture area 30 on the second preset horizontal plane is within the range of the projection of the first texture area 20 on the second preset horizontal plane, and the vertical depth of the second texture area 30 is greater than the vertical depth of the first texture area 20. Specifically, relative to the first texture area 20, by making the vertical depth of the second texture area 30 larger and the area of ​​the second texture area 30 smaller, on the one hand, it can be ensured that the deformation generated by the laser first texture area 20 and the deformation generated by the laser second texture area 30 can offset each other, and on the other hand, the process of laser second texture area 30 can be simplified by controlling the area of ​​the second texture area 30, without having to make the second texture area 30 also cover the second surface 12.

[0043] like Figure 1As shown, the first texture area 20 includes a plurality of sub-texture groups 21, and two adjacent sub-texture groups 21 are arranged at intervals. Such an arrangement enables the first surface 11 to still have a relatively smooth portion relative to the first texture area 20, so that the shovel structure can easily shovel the target printed object off the molding platform. Specifically, the sub-texture group 21 is a regular polygon structure. In this embodiment, the sub-texture group 21 is a regular hexagon structure, which has the advantage of being easy to process. In addition, in other embodiments, the sub-texture group can be a regular polygon structure such as a regular triangle, a square, a regular octagon, etc.

[0044] like Figure 1 As shown, the distance D between two adjacent sub-texture groups 21 is between 0 mm and 3.8 mm. Specifically, such a configuration can not only ensure the stability of the connection between the target printed object and the first surface 11, but also make it easy for the shovel structure to shovel the target printed object off the forming platform. In this embodiment, the distance D between two adjacent sub-texture groups 21 can be 0.8 mm, 1.3 mm, 1.95 mm, 2.37 mm, 3 mm, 3.55 mm, 3.8 mm; it should be noted that the distance D between two adjacent sub-texture groups 21 is greater than 0; in addition, the structures of the second texture area 30 and the first texture area 20 are similar, which will not be repeated herein.

[0045] In addition, in this embodiment, a plurality of sub-texture groups 21 are arranged at equal intervals, that is, the distance between each two adjacent sub-texture groups 21 is equal, and such an arrangement can make the overall roughness of the first surface 11 more stable.

[0046] like Figure 3 As shown, the molding platform is a plate-like structure, and the sub-texture group 21 includes a plurality of first textures 211, which are arranged in parallel and extend along the first direction. In this embodiment, the base portion 10 is a rectangular structure, and the first direction is the length direction of the rectangular structure. The arrangement of the plurality of first textures 211 can make the connection between the target printed object and the first surface 11 more stable; the distance between two adjacent first textures 211 is between 0.03mm and 0.5mm, specifically, the distance between two adjacent first textures 211 can be 0.03mm, 0.1mm, 0.15mm, 0.38mm, 0.45mm, 0.5mm; the width of the first texture 211 is between 0.03mm and 0.1mm, specifically, the width of the first texture 211 can be 0.03mm, 0.04mm, 0.05mm, 0.07mm, 0.09mm, 0.1mm. It should be noted that the boundaries of the plurality of first lines 211 of each sub-line group 21 together form the outer contour of the sub-line group 21 .

[0047] In addition, in this embodiment, drainage holes are further provided on the base portion 10, and the drainage holes penetrate the second surface 12 and the first surface 11. Specifically, in this embodiment, there are multiple drainage holes, and when the molding platform moves downward and is located in the material tray, the provision of the drainage holes can facilitate the light-curable resin material in the material tray to flow through the drainage holes, thereby reducing the degree of shaking of the light-curable resin material in the material tray due to the entry of the molding platform.

[0048] In addition, in this embodiment, the base 10 is made of stainless steel. The base 10 made of stainless steel has strong corrosion resistance, is suitable for working in a humid, acidic and alkaline environment, has good heat resistance, has high strength and hardness, and can withstand large loads and impacts.

[0049] like Figure 4 As shown, the present application also provides a second embodiment of the molding platform, and the second embodiment is different from the first embodiment in that: the sub-texture group 21 also includes a plurality of second textures 212, and the plurality of second textures 212 are arranged in parallel and extend along a second direction, and the second direction is arranged at an angle to the first direction. Such an arrangement can further improve the stability of the connection between the target printed object and the first surface 11, thereby reducing the possibility of the target printed object being disconnected from the first surface 11, thereby ensuring the smooth progress of 3D printing.

[0050] The present application also provides a 3D printing device, the 3D printing device of the present application includes a molding platform, wherein the molding platform is the above-mentioned molding platform. The above-mentioned molding platform can effectively solve the problem of the troublesome re-correction of the flatness of the molding platform in the related art, and the 3D printing device with the above-mentioned molding platform also has the above-mentioned advantages.

[0051] like Figure 5 As shown, the molding platform of the 3D printing device is connected to the lifting structure of the 3D printing device through the platform mounting structure 40, so that the molding platform can move according to a preset trajectory.

[0052] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A molding platform for 3D printing equipment, characterized in that: include: A base portion (10) having a molding surface for connecting to a target printed object; A first textured area (20) is arranged on a first surface (11) of the base portion (10), wherein the first surface (11) forms the molding surface; The second textured area (30) is arranged on the second surface (12) of the base portion (10), and the first surface (11) and the second surface (12) are arranged opposite to each other.

2. The forming platform according to claim 1, characterized in that: The first textured area (20) is a first symmetrical structure and has a first symmetrical axis; the second textured area (30) is a second symmetrical structure and has a second symmetrical axis, and the first symmetrical axis and the second symmetrical axis are located in a preset vertical plane.

3. The forming platform according to claim 2, characterized in that: The base portion (10) is a third symmetrical structure and has a third symmetry axis, and the third symmetry axis is located in the preset vertical plane.

4. The forming platform according to any one of claims 1 to 3, characterized in that: The projection of the second textured area (30) on the first preset horizontal plane is located within the range of the projection of the first textured area (20) on the first preset horizontal plane, and the vertical depth of the second textured area (30) is greater than the vertical depth of the first textured area (20).

5. The forming platform according to claim 1, characterized in that: The outer contour of the projection of the first textured area (20) on the second preset horizontal plane coincides with the outer contour of the projection of the first surface (11) on the second preset horizontal plane.

6. The forming platform according to claim 1, characterized in that: The first texture area (20) comprises a plurality of sub-texture groups (21), and two adjacent sub-texture groups (21) are arranged at intervals.

7. The forming platform according to claim 6, characterized in that: The distance between two adjacent sub-texture groups (21) is between 0 mm and 3.8 mm; and / or the sub-texture groups (21) are regular polygonal structures; and / or The plurality of sub-texture groups (21) are arranged at equal intervals.

8. The forming platform according to claim 6, characterized in that: The forming platform is a plate-like structure, and the sub-pattern group (21) comprises a plurality of first patterns (211), wherein the plurality of first patterns (211) are arranged in parallel and extend along a first direction.

9. The forming platform according to claim 8, characterized in that: The distance between two adjacent first lines (211) is between 0.03 mm and 0.5 mm; and / or the width of the first lines (211) is between 0.03 mm and 0.1 mm; and / or, The sub-texture group (21) further comprises a plurality of second textures (212), wherein the plurality of second textures (212) are arranged in parallel and extend along a second direction, wherein the second direction is arranged at an angle to the first direction.

10. The forming platform according to claim 1, characterized in that: The base portion (10) is also provided with a drainage hole, the drainage hole penetrating the second surface (12) and the first surface (11); and / or, The base part (10) is made of stainless steel.

11. A 3D printing device, comprising a molding platform, characterized in that: The molding platform is the molding platform according to any one of claims 1 to 10.

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