A leveling structure and printing platform

Abstract

This utility model relates to the field of additive manufacturing technology, specifically to a leveling structure and a printing platform. The leveling structure includes: a main body for mounting on a 3D printer's printing platform, a through hole on the main body, and a cantilever for mounting a sensor within the through hole, the cantilever being connected to the main body via a connecting part; the printing platform includes the leveling structure, a housing, and a heated bed mounted on top of the housing. At least three leveling structures are provided, each mounted at a different position on the housing and connected to the heated bed. This utility model improves the leveling structure by incorporating a cantilever on the main body for mounting the sensor, the cantilever being connected to the main body via a connecting part, and a first connecting part and a second connecting part, such that the included angle between the first connecting part and the second connecting part is greater than 90°, thereby improving the sensitivity of the leveling structure and thus improving the leveling effect.

Description

Technical Field

[0001] This utility model relates to the field of additive manufacturing technology, specifically to a leveling structure and printing platform. Background Technology

[0002] 3D printing using FDM (Fused Deposition Modeling) technology is increasingly favored by DIY enthusiasts. Before printing, the 3D model of the object to be printed usually needs to be layered using slicing software, breaking down the printing process into many 2D printing steps. Each layer can be considered a planar print. The quality of the first layer directly affects and determines the overall print quality of the model.

[0003] To print a good first layer, leveling is a crucial step. The distance between the heated bed and the effector (printer head) must be adjusted to an appropriate height to ensure the printed substrate adheres evenly to the platform surface and is uniformly fixed. In actual printing of the first layer, the heated bed is not perfectly level; it will have bumps and depressions. If a fixed height is used, bumps will cause friction against the heated bed, triggering the motor overcurrent protection of the effector, affecting print quality and printing progress. Concave areas, due to excessive distance, will prevent the molten filament from adhering properly to the heated bed, resulting in an unstable first layer position and affecting the printing of subsequent layers. Therefore, improving the leveling technology of the printing platform is necessary. Utility Model Content

[0004] This utility model provides a leveling structure and a printing platform to solve the technical problem of poor leveling effect of the printing platform in the prior art, which leads to printing failure or poor printing effect.

[0005] To solve the above problems, the leveling structure provided by this utility model adopts the following technical solution: A leveling structure, comprising: The body is used to be installed on the printing platform of a 3D printer. The body has a through hole, and a cantilever for installing a sensor is provided in the through hole. The cantilever is connected to the body through a connecting part. The connecting portion includes a first connecting portion and a second connecting portion, and the included angle between the first connecting portion and the second connecting portion is greater than 90°.

[0006] Furthermore, the width of the first connecting portion is smaller than the width of the second connecting portion.

[0007] Furthermore, the second connecting portion is provided with one or more.

[0008] Furthermore, the sensor is a piezoelectric ceramic sensor.

[0009] Furthermore, the body includes a fixed end and a movable end, and the fixed end of the body is provided with a positioning hole and a mounting hole.

[0010] This utility model also provides a printing platform, including a leveling structure, a housing, and a heated bed mounted on top of the housing. At least three leveling structures are provided, and the three leveling structures are respectively mounted at different positions on the housing and connected to the heated bed.

[0011] Furthermore, the inner wall of the housing is provided with positioning protrusions that cooperate with the positioning holes.

[0012] Furthermore, the fixed end of the main body is connected to the shell, and the movable end of the main body is connected to the heated bed.

[0013] Furthermore, the heated bed includes, from bottom to top, a base, a mounting plate, a soft magnetic plate, and a construction plate.

[0014] The beneficial effects of the leveling structure and printing platform provided by this utility model are: This invention improves the leveling structure by adding a cantilever component to the main body. The cantilever component is used to install sensors and is connected to the main body through a connecting part. The first connecting part and the second connecting part form an angle greater than 90°, which can improve the sensitivity of the leveling structure and thus improve the leveling effect. This utility model, by setting positioning protrusions and positioning holes, enables quick installation and positioning during the installation of the main body, making it highly practical. Attached Figure Description

[0015] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the isometric structure of the printing platform in this utility model; Figure 2 This is a schematic diagram of the printing platform in this utility model from a bottom view; Figure 3 This is an explosion diagram of the heated bed in this utility model; Figure 4 This is a schematic diagram of the heated bed structure in this utility model, viewed from below. Figure 5 This is a schematic diagram of the leveling structure in this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Heated bed; 101. Base; 102. Mounting plate; 103. Soft magnetic plate; 104. Construction plate; 2. Housing; 201. Positioning protrusion; 3. Leveling structure; 301. Body; 302. Through hole; 303. Cantilever component; 304. First connecting part; 305. Second connecting part; 306. Positioning hole; 307. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0019] As is known, leveling is a crucial step in printing a successful first layer with a 3D printer. Adjusting the distance between the heated bed and the effector to an appropriate height ensures that the printed layer adheres evenly to the platform surface and is uniformly fixed. However, during actual first-layer printing, the heated bed is not perfectly level; it will have bumps and depressions. If a fixed height is used, bumps will cause friction against the heated bed, triggering the effector's motor overcurrent protection, affecting print quality and printing progress. Concave areas, due to excessive distance, will prevent the molten filament from adhering properly to the heated bed, resulting in an unstable first-layer position and affecting the printing of subsequent layers. Therefore, improving the leveling technology of the printing platform is necessary.

[0020] The principles of this utility model will be explained in detail below with reference to several representative embodiments.

[0021] An embodiment of the leveling structure and printing platform provided by this utility model: Example

[0022] like Figures 1 to 5As shown, a printing platform is disclosed, including a heated bed 1 and a housing 2. The heated bed 1 includes a base 101, a mounting plate 102, a soft magnetic plate 103, and a construction plate 104 arranged sequentially from bottom to top. The construction plate 104 is used to support the printed object. One end of the leveling structure 3 is fixedly connected to the housing 2, and the other end of the leveling structure 3 is connected to the base 101 by bolts. When leveling, the leveling structure 3 of the heated bed 1 is deformed when pressed down, and the sensor installed on the leveling structure 3 is deformed, thereby achieving leveling. In order to ensure the leveling effect, at least three leveling structures 3 are provided, and the three leveling structures 3 are installed in different positions. In actual installation, the three leveling structures 3 can be evenly distributed.

[0023] Figure 5 The leveling structure 3 is disclosed. The leveling structure 3 includes: a body 301, which is used to install on the printing platform of a 3D printer. A through hole 302 is provided on the body 301. A cantilever 303 for installing a sensor is provided in the through hole 302. The sensor is a piezoelectric ceramic sensor. The cantilever 303 is connected to the body 301 through a connecting part. The connecting part includes a first connecting part 304 and a second connecting part 305. The included angle between the first connecting part 304 and the second connecting part 305 is greater than 90°. The first connecting part 304 is located on the side away from the housing 2. By making the included angle between the first connecting part 304 and the second connecting part 305 greater than 90°, when the hot bed 1 is pressed down, the first connecting part 304 drives the cantilever member 303 to deform. That is, when the hot bed 1 is subjected to a small force, the first connecting part 304 can also deform, thereby improving the sensitivity.

[0024] In practical applications, in order to improve the load-bearing capacity of the heated bed 1 and prevent excessive deformation of the cantilever 303, at least two second connecting parts 305 can be provided to improve the strength.

[0025] Furthermore, in order to ensure sensitivity and the strength of the leveling structure 3, the width of the first connecting part 304 is made smaller than the width of the second connecting part 305.

[0026] In addition, to facilitate the installation of the leveling structure 3, a positioning hole 306 is provided at the fixed end of the main body 301, that is, on the side of the main body 301 near the housing 2. The housing 2 is provided with a positioning protrusion 201. When installing the main body 301, the positioning protrusion 201 is installed in the positioning hole 306, thereby achieving quick positioning and installation.

[0027] In this embodiment, the main body 301, the cantilever 303, the first connecting part 304 and the second connecting part 305 are integrally formed structures; a mounting hole 307 can be opened at one end of the main body 301 near the housing 2 to facilitate the fixed connection between the main body 301 and the housing 2 by bolts.

[0028] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0029] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A leveling structure, characterized in that: include: The body is used to be installed on the printing platform of a 3D printer. The body has a through hole, and a cantilever for installing a sensor is provided in the through hole. The cantilever is connected to the body through a connecting part. The connecting portion includes a first connecting portion and a second connecting portion, and the included angle between the first connecting portion and the second connecting portion is greater than 90°.

2. The leveling structure as described in claim 1, characterized in that: The width of the first connecting part is smaller than the width of the second connecting part.

3. The leveling structure as described in claim 1, characterized in that: The second connecting part has one or more.

4. The leveling structure as described in claim 1, characterized in that: The sensor is a piezoelectric ceramic sensor.

5. The leveling structure as described in claim 1, characterized in that: The main body includes a fixed end and a movable end, and the fixed end of the main body is provided with a positioning hole and a mounting hole.

6. A printing platform, comprising the leveling structure as described in claim 5, characterized in that: It also includes a housing and a heated bed mounted on top of the housing. At least three leveling structures are provided, which are respectively installed at different positions on the housing and connected to the heated bed.

7. A printing platform as described in claim 6, characterized in that: The inner wall of the housing is provided with positioning protrusions that cooperate with the positioning holes.

8. A printing platform as described in claim 6, characterized in that: The fixed end of the main body is connected to the shell, and the movable end of the main body is connected to the heated bed.

9. A printing platform as described in claim 6, characterized in that: The heated bed includes, from bottom to top, a base, a mounting plate, a soft magnetic plate, and a construction plate.

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