Platform mounting assembly and 3D printing device with same

Abstract

The utility model provides a platform installation assembly and a 3D printing device with the platform installation assembly, and the platform installation assembly comprises a shell, a plurality of supporting rods and a plurality of supporting rods, a platform mounting structure; the floating structure comprises an elastic piece and a positioning piece, the elastic piece is in positioning fit with the positioning piece, the first end of the positioning piece is connected with the shell, the second end, opposite to the first end, of the positioning piece is arranged on the platform mounting structure in a penetrating mode, and the elastic piece is located between the shell and the platform mounting structure. According to the technical scheme, the problem that the floating structure is complex and not easy to maintain due to the fact that the floating structure is arranged on a platform or a substrate in the prior art is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and more specifically, to a platform mounting component and a 3D printing device having the same. Background Technology

[0002] Currently, 3D printing technology is widely used in manufacturing, especially in the field of high-precision model making using photopolymerization principles. Photopolymerization 3D printing technology (e.g., SLA, DLP) requires that the forming platform and the material tray maintain parallelism to ensure uniform curing of the material layers. Therefore, the platform typically requires leveling and floating designs during the printing process to adjust its position and orientation, while preventing excessive pressure or improper gaps when the platform contacts the material tray.

[0003] In related technologies, floating structures are designed on the substrate. However, this leads to difficulties in perimeter sealing, and if resin material in the tray accidentally falls onto the substrate, it may enter the mounting gaps between various components on the substrate. Furthermore, the high precision requirements due to the large number of components on the substrate also pose a challenge. Utility Model Content

[0004] The main objective of this invention is to provide a platform mounting component and a 3D printing device having the same, in order to solve the problem in related technologies where floating structures are set on platforms or substrates, resulting in complex structures that are difficult to maintain.

[0005] To achieve the above objectives, according to one aspect of the present invention, a platform mounting assembly is provided, comprising: a housing; a platform mounting structure; and a floating structure including an elastic element and a positioning element, wherein the elastic element and the positioning element are positioned and engaged, a first end of the positioning element opposite to a first end is connected to the housing, a second end of the positioning element is inserted through the platform mounting structure, and the elastic element is located between the housing and the platform mounting structure.

[0006] Furthermore, there are multiple elastic elements and multiple positioning elements, with the multiple elastic elements and multiple positioning elements arranged in a one-to-one correspondence, and the multiple elastic elements are spaced apart along the circumferential direction of the platform mounting structure.

[0007] Furthermore, the elastic element includes a floating spring, and the positioning element includes a positioning post. The floating spring is sleeved on the positioning post, and the two ends of the floating spring abut against the platform mounting structure and the housing, respectively.

[0008] Furthermore, the platform installation structure is provided with clearance holes, and the positioning column is inserted into the clearance holes.

[0009] Furthermore, the platform installation components also include a force detection element, which is installed on the platform installation structure, and the elastic element abuts and cooperates with the force detection element.

[0010] Furthermore, the platform mounting assembly also includes a leveling structure located on the side of the platform mounting structure away from the housing. The leveling structure is provided with guide holes, into which positioning components can be inserted.

[0011] Furthermore, the leveling structure includes an adjusting plate and a fixing plate, with a protrusion on the adjusting plate and a guide hole located on the protrusion.

[0012] Furthermore, the leveling structure also includes a leveling spring and a leveling screw. The leveling spring is sleeved on the leveling screw, and the leveling screw is connected between the leveling plate and the fixed plate.

[0013] Furthermore, the platform mounting components also include an electromagnetic structure, which is positioned between the leveling structure and the platform mounting structure, and is centrally located relative to the platform mounting structure.

[0014] Furthermore, the platform mounting components also include a locking structure and a molding platform. The locking structure is located on the platform mounting structure, and the molding platform is located below the platform mounting structure. The locking structure can lock and engage with the molding platform.

[0015] According to another aspect of the present invention, a 3D printing apparatus is provided, including a platform mounting assembly, wherein the platform mounting assembly is the platform mounting assembly described above.

[0016] The floating structure, utilizing the technical solution of this utility model, includes an elastic element and a positioning element. The first end of the positioning element is connected to the shell, and the second end of the positioning element passes through the platform mounting structure. The elastic element and the positioning element are positioned and engaged, with the elastic element located between the shell and the platform mounting structure. Through this arrangement, the positioning element can position the elastic element, thus making its position more stable. The elastic element enables relative floating between the platform mounting structure and the shell, thereby achieving the floating function of the platform mounting structure. This arrangement simplifies the overall structure. Therefore, the technical solution of this application effectively solves the problem in related technologies where floating structures are mounted on platforms or substrates, leading to complex structures that are difficult to maintain. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A perspective structural schematic diagram of an embodiment of the platform mounting assembly according to the present invention is shown;

[0019] Figure 2 It shows Figure 1A schematic diagram of the exploded structure of the platform installation components;

[0020] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the platform mounting components without the housing installed;

[0021] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the platform installation components before the platform is fully installed;

[0022] Figure 5 It shows Figure 1 A schematic diagram of part of the structure of the platform installation components;

[0023] Figure 6 It shows Figure 1 A cross-sectional view of the platform installation components;

[0024] Figure 7 It shows Figure 1 A cross-sectional view of the platform mounting components from another direction.

[0025] The above figures include the following reference numerals:

[0026] 10. Shell; 20. Platform mounting structure; 21. Clearance hole; 30. Floating structure; 31. Elastic element; 311. Floating spring; 32. Positioning element; 321. Positioning post; 40. Force detection element; 50. Leveling structure; 51. Guide hole; 52. Adjusting plate; 521. Protrusion; 53. Fixing plate; 54. Leveling spring; 55. Leveling screw; 60. Electromagnetic structure; 70. Locking structure; 80. Forming platform. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. 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.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] like Figures 1 to 4 As shown, in this embodiment, the platform mounting assembly includes: a housing 10, a platform mounting structure 20, and a floating structure 30. The floating structure 30 includes an elastic member 31 and a positioning member 32. The elastic member 31 and the positioning member 32 are positioned and engaged. The first end of the positioning member 32 is connected to the housing 10, and the second end of the positioning member 32, opposite to the first end, passes through the platform mounting structure 20. The elastic member 31 is located between the housing 10 and the platform mounting structure 20.

[0031] Applying the technical solution of this embodiment, the floating structure 30 includes an elastic member 31 and a positioning member 32. The first end of the positioning member 32 is connected to the housing 10, and the second end of the positioning member 32 passes through the platform mounting structure 20. The elastic member 31 and the positioning member 32 are positioned and engaged, with the elastic member 31 located between the housing 10 and the platform mounting structure 20. Through this arrangement, the positioning member 32 can position the elastic member 31, thereby making its position more stable. The elastic member 31 enables relative floating between the platform mounting structure 20 and the housing 10, thus realizing the floating function of the platform mounting structure 20. This arrangement simplifies the overall structure. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies where floating structures are placed on platforms or substrates, leading to complex structures that are difficult to maintain.

[0032] Specifically, the housing 10 serves as the external frame of the platform mounting assembly, providing support and positioning space for the platform mounting structure 20 and ensuring the stability and integrity of the internal structure. Utilizing its structural strength and enclosure, the housing 10 provides a safe and stable operating environment for the internal floating, leveling, and locking structures, preventing external factors from interfering with the normal operation of the assembly. This improves the environmental adaptability and operational safety of the platform mounting assembly. During use, the housing 10 not only protects the internal structure from external physical impacts but also provides the necessary space and guidance for the floating, leveling, and locking of the platform mounting structure 20.

[0033] The platform mounting structure 20, in conjunction with the floating structure 30, enables the platform to make minute displacements during the printing process, in order to adapt to the curing process of the printing material and reduce stress accumulation during the printing process.

[0034] The floating structure 30 includes an elastic element 31 and a positioning element 32. The elastic element 31 and the positioning element 32 are positioned and engaged. The first end of the positioning element 32 is connected to the housing 10, and the second end passes through the platform mounting structure 20. The elastic element 31 is located between the housing 10 and the platform mounting structure 20. This design utilizes the elastic force of the elastic element 31 to provide floating power to the platform mounting structure 20, while the guiding effect of the positioning element 32 ensures the stability and positioning accuracy of the platform during floating. This improves the platform's response speed and the smoothness of the floating process.

[0035] In such Figure 2 , Figure 3 as well as Figures 5 to 7 As shown, in this embodiment, the platform mounting structure 20 includes a top plate and a first side plate and a second side plate connected to the top plate. The first side plate and the second side plate are respectively disposed on both sides of the top plate. The floating structure 30 is located between the top plate and the housing 10. The locking structure 70 is located on the first side plate and the second side plate.

[0036] like Figures 1 to 4 as well as Figure 6 and Figure 7 As shown, in this embodiment, there are multiple elastic elements 31 and multiple positioning elements 32. The multiple elastic elements 31 and multiple positioning elements 32 are arranged in a one-to-one correspondence. The multiple elastic elements 31 are arranged at intervals along the circumference of the platform mounting structure 20. The multiple elastic elements 31 are evenly distributed to ensure that the platform mounting structure 20 can obtain a consistent floating force in all directions, avoiding the platform from tilting or becoming unstable during the floating process.

[0037] Specifically, in this embodiment, there are four elastic elements 31.

[0038] like Figures 1 to 4 as well as Figure 6 and Figure 7As shown, in this embodiment, the elastic element 31 includes a floating spring 311, and the positioning element 32 includes a positioning post 321. The floating spring 311 is sleeved on the positioning post 321, and its two ends abut against the platform mounting structure 20 and the housing 10, respectively. This design utilizes the elastic force of the floating spring 311 to provide floating power for the platform mounting structure 20, while the guiding effect of the positioning post 321 ensures the stability and positioning accuracy of the platform during the floating process. This improves the response speed of the platform mounting structure 20 and the smoothness of the floating process.

[0039] During the printing process, changes in the viscosity of the cured material cause the platform mounting structure 20 to be subjected to different forces. The floating spring 311 will compress or stretch according to these force changes, thereby causing the platform mounting structure 20 to float slightly up and down. The positioning column 321 ensures the guidance and positional stability of the platform mounting structure 20 during the floating process.

[0040] like Figures 1 to 4 as well as Figure 6 and Figure 7 As shown, in this embodiment, the platform mounting structure 20 is provided with a clearance hole 21, and the positioning post 321 passes through the clearance hole 21. The clearance hole 21 provides a path for the positioning post 321 to pass through the platform mounting structure 20. At the same time, the size and position design of the clearance hole 21 ensures the degree of freedom of the positioning post 321 when it floats up and down on the platform, avoiding structural interference.

[0041] like Figures 1 to 5 as well as Figure 6 and Figure 7 As shown, in this embodiment, the platform mounting assembly also includes a force detection element 40, which is disposed on the platform mounting structure 20. The elastic element 31 abuts against the force detection element 40. The force detection element 40 monitors the force on the platform in real time during the floating process, providing data support for the leveling and locking of the platform.

[0042] like Figure 2 , Figure 6 as well as Figure 7 As shown, in this embodiment, the platform mounting assembly further includes a leveling structure 50. The leveling structure 50 is located on the side of the platform mounting structure 20 away from the housing 10. The leveling structure 50 is provided with a guide hole 51, into which the positioning member 32 can be inserted. The leveling structure 50 provides a leveling function for the platform, ensuring the platform remains horizontal during the printing process and improving printing accuracy.

[0043] like Figure 2 , Figure 6 as well as Figure 7As shown, in this embodiment, the leveling structure 50 includes an adjusting plate 52 and a fixing plate 53 located below the adjusting plate 52. The adjusting plate 52 is provided with a protrusion 521, and a guide hole 51 is located on the protrusion 521. By fine-tuning the adjusting plate 52, the platform is leveled, while the fixing plate 53 provides stable support, ensuring the reliability of the leveling process.

[0044] It should also be noted that the protrusion 521 can abut and cooperate with the platform mounting structure 20.

[0045] Specifically, in this embodiment, there are four protrusions 521.

[0046] like Figure 2 , Figure 6 as well as Figure 7 As shown, in this embodiment, the leveling structure 50 further includes a leveling spring 54 and a leveling screw 55. The leveling spring 54 is sleeved on the leveling screw 55, which connects the leveling plate 52 and the fixing plate 53. The electromagnetic structure 60 is centrally located relative to the platform mounting structure 20. This design provides leveling power to the leveling plate 52 through the elastic force of the leveling spring 54, while the adjusting action of the leveling screw 55 ensures the accuracy and controllability of the leveling process.

[0047] like Figure 2 , Figure 6 as well as Figure 7 As shown, in this embodiment, the platform mounting assembly also includes an electromagnetic structure 60, which is disposed between the leveling structure 50 and the platform mounting structure 20. The platform is fixed and unlocked through the magnetic force of the electromagnetic structure 60. Furthermore, the magnetic force of the electromagnetic structure 60 can be adjusted by current, ensuring the reliability and flexibility of the platform locking mechanism.

[0048] Specifically, the leveling function is achieved through a fixed plate 53, a leveling spring 54, a leveling screw 55, and a leveling plate 52. The platform mounting structure 20 and related structures mounted on it change angle according to the leveling plate 52. The fixed load cell is fixed to the fixed plate 53 with screws. The leveling spring 54 is installed above the fixed plate 53. The leveling screw 55 passes through the leveling plate 52 and the leveling spring 54 to fasten the leveling plate 52 to the fixed plate 53. An electromagnetic structure 60 is installed at the center of the leveling plate 52.

[0049] The electromagnetic structure 60 includes an electromagnet and a magnetic plate. The magnetic plate is fastened to the inside of the platform mounting structure 20 by screws. Force sensors are distributed above the platform mounting structure 20 by screws, and are evenly distributed around the magnetic plate to avoid uneven movement of the four force detection elements 40 due to residual magnetic force. A floating spring 311 is installed above the force detection element 40, and a positioning post 321 passes through the floating spring 311 and locks it onto the adjusting plate 52. The floating spring 311 provides a certain force to press the platform mounting structure 20 firmly onto the electromagnet. When the printer prints or performs zeroing, the platform mounting structure 20 can compress the floating spring 311 and float due to its presence.

[0050] A magnetic plate is installed below the platform mounting structure 20. The magnetic plate is pressed onto the electromagnet by screws passing through the floating spring 311. When energized, the platform mounting structure 20 is held in place. When the printer is printing, the electromagnet holds the platform mounting structure 20 in place, preventing the platform mounting components from shifting.

[0051] like Figures 1 to 7 As shown, in this embodiment, the platform mounting assembly also includes a locking structure 70 and a forming platform 80. The locking structure 70 is disposed on the platform mounting structure 20, and the forming platform 80 is located below the platform mounting structure 20. The locking structure 70 can lock into the forming platform 80. Through the mechanical locking action of the locking structure 70, the platform and the forming platform 80 are fixed, ensuring stability and safety during the printing process.

[0052] like Figure 5 As shown, in this embodiment, the locking structure includes a locking handle, a stepped screw, a support guide block, a locking spring, a locking pressure block, and a return spring. The locking handle is made of plastic and has a cam shape on both sides. It is fastened to the platform mounting structure 20 by the stepped screw. After tightening the stepped screw, a set screw needs to be tightened to secure it and prevent loosening. A locking spring is placed in the middle of the support guide block, and the spring and the locking pressure block have a beveled end that presses against the beveled surface of the recess on the platform handle. A return spring is installed on the outside of the support guide block.

[0053] like Figure 5 As shown, the support guide blocks are installed in the guide grooves on the left and right sides of the platform mounting structure 20, and are laterally limited by shims. The top surface of the support guide block is always in contact with the cam surface of the locking handle. When the locking handle is turned downwards, the support guide block will first descend. When the locking pressure block contacts the platform handle, it will compress the locking spring, which provides the required locking force. When the locking handle is opened, the return spring will push the support guide block upwards until the support guide block reaches the limit position of the platform mounting structure 20.

[0054] Specifically, the forming platform 80 can be clamped between the locking structure 70 and the platform mounting structure 20.

[0055] The technical solution of this embodiment is a modular design, which realizes the floating, locking and leveling functions of the molding platform 80 without contacting the resin. The electromagnetic structure 60 is placed in the center, so there will be no uneven force data fluctuation due to residual magnetism. At the same time, it makes the platform installation components simpler and improves the reliability, maintainability and safety of the whole machine.

[0056] According to another aspect of this application, a 3D printing apparatus is provided. The 3D printing apparatus of this embodiment includes a platform mounting assembly, which is the platform mounting assembly described above. Integrating the platform mounting assembly into the 3D printing apparatus enables the floating, leveling, and locking functions of the platform during the printing process.

[0057] In the description of this utility model, it should be understood that "multiple" means a quantity of two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0059] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A platform installation component, characterized in that, include: Shell (10); Platform installation structure (20); The floating structure (30) includes an elastic element (31) and a positioning element (32). The elastic element (31) and the positioning element (32) are positioned and engaged. The first end of the positioning element (32) is connected to the housing (10). The second end of the positioning element (32) opposite to the first end passes through the platform mounting structure (20). The elastic element (31) is located between the housing (10) and the platform mounting structure (20).

2. The platform installation component according to claim 1, characterized in that, There are multiple elastic elements (31) and multiple positioning elements (32). The multiple elastic elements (31) and multiple positioning elements (32) are arranged in a one-to-one correspondence. The multiple elastic elements (31) are arranged at intervals along the circumference of the platform mounting structure (20).

3. The platform installation component according to claim 1, characterized in that, The elastic element (31) includes a floating spring (311), and the positioning element (32) includes a positioning post (321). The floating spring (311) is sleeved on the positioning post (321), and the two ends of the floating spring (311) abut against the platform mounting structure (20) and the housing (10) respectively.

4. The platform installation component according to claim 3, characterized in that, The platform mounting structure (20) is provided with a clearance hole (21), and the positioning post (321) passes through the clearance hole (21).

5. The platform installation component according to claim 1, characterized in that, The platform mounting assembly also includes a force detection element (40), which is disposed on the platform mounting structure (20), and the elastic element (31) abuts against the force detection element (40).

6. The platform installation component according to claim 1, characterized in that, The platform mounting assembly also includes a leveling structure (50), which is located on the side of the platform mounting structure (20) away from the housing (10). The leveling structure (50) is provided with a guide hole (51), and the positioning member (32) can be inserted into the guide hole (51).

7. The platform installation component according to claim 6, characterized in that, The leveling structure (50) includes an adjusting plate (52) and a fixing plate (53). The adjusting plate (52) is provided with a protrusion (521), and the guide hole (51) is located on the protrusion (521).

8. The platform installation component according to claim 7, characterized in that, The leveling structure (50) further includes a leveling spring (54) and a leveling screw (55). The leveling spring (54) is sleeved on the leveling screw (55), and the leveling screw (55) is connected between the leveling plate (52) and the fixing plate (53).

9. The platform installation component according to claim 6, characterized in that, The platform mounting assembly also includes an electromagnetic structure (60), which is disposed between the leveling structure (50) and the platform mounting structure (20), and the electromagnetic structure (60) is centrally arranged relative to the platform mounting structure (20).

10. The platform mounting component according to any one of claims 1 to 9, characterized in that, The platform mounting assembly also includes a locking structure (70) and a molding platform (80). The locking structure (70) is disposed on the platform mounting structure (20), and the molding platform (80) is located below the platform mounting structure (20). The locking structure (70) can lock into the molding platform (80).

11. A 3D printing apparatus, comprising a platform mounting assembly, characterized in that, The platform installation component is the platform installation component according to any one of claims 1 to 10.

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