Photocuring forming platform

Abstract

The utility model relates to a photocuring forming platform. The photocuring forming platform comprises a tray lower assembly, a tray upper assembly and a leveling mechanism, a forming face is arranged at the bottom end of the tray lower assembly, and the tray lower assembly is provided with an upward opening defined by a tray middle frame; the tray upper assembly covers the opening to form an accommodating cavity; the leveling mechanism is arranged in the containing cavity, connected with the tray lower assembly and the tray upper assembly and used for adjusting the angle of the forming face relative to the resin liquid level. According to the scheme provided by the invention, the resin can be prevented from being adhered to the leveling mechanism, the influence of the resin on the use of the leveling mechanism is prevented, and the resin can also be prevented from being adhered to the upper surface of the tray lower assembly, so that the amount of the resin adhered to the tray lower assembly is reduced, and the waste of the resin during cleaning of the photocuring forming platform is reduced.

Description

Technical Field

[0001] The present application relates to the field of 3D printing technology, and in particular to a photocuring molding platform. Background Art

[0002] In the field of 3D (three dimensional) printing, rapid prototyping technology can be divided into many categories according to the materials used, molding methods, etc., among which photo-curing rapid prototyping is the most common. The principle of photo-curing molding is: using the characteristics of photosensitive resin (UV) in a fluid state to undergo polymerization reaction under light, the light source is irradiated according to the cross-sectional shape of the object to be molded, so that the fluid resin is cured and formed. Taking the LCD photo-curing 3D printer as an example, the printer transmits the cross-sectional pattern of the 3D printed object layer by layer to the LCD screen through a data transmission device, and then irradiates the LCD screen with light of a specific wavelength, so that the fluid resin above the LCD screen is cured layer by layer according to the pattern, and finally forms a specified 3D printed object.

[0003] In a photocuring 3D printer, the polymerization reaction of the photosensitive resin from a fluid state to a solid state is stimulated by light of a special wavelength. Therefore, the shape of the printed body actually printed out in the current layer is theoretically the same as the shape of the illuminated area. In a photocuring 3D printer based on LCD technology, the shape of the illuminated area is controlled by the LCD. By controlling the pattern displayed on the LCD through the internal circuit system, the shape of each layer of the molded body during the 3D printing process can be controlled. The surface light source required for photocuring is arranged under the LCD, the resin pool is arranged above the LCD, and a Z-axis transmission structure and a molding platform are added to realize photocuring 3D printing based on LCD technology.

[0004] See also Figure 1 Generally, designers will design the forming platform to be composed of three parts, namely the pallet cover, the pallet middle frame and the pallet bottom plate. The pallet cover and the pallet middle frame can move up and down relative to each other and can be fixed by screws, and the pallet middle frame and the pallet bottom plate are fixedly connected by screws. However, this pallet structure and fixing method have the following problems:

[0005] Due to the "inverted door" structure of the tray middle frame and the tray bottom plate, the cross section of the tray bottom plate is larger than the cross section of the tray middle frame, and the tray bottom plate is in a pancake shape. After printing, the liquid photosensitive resin will adhere to the upper surface of the tray bottom plate. This part of the resin will be washed away during cleaning, resulting in resin waste. In addition, the resin will also enter the interior of the tray middle frame and adhere to the edge of the screw, which is difficult to clean, and will have an adverse effect on printing after replacing the resin. Utility Model Content

[0006] In order to solve or partially solve the problems existing in the related art, the present application provides a photocuring molding platform, which can avoid wasting resin and reduce the difficulty of cleaning the photocuring molding platform.

[0007] The first aspect of the present application provides a photocuring molding platform, which includes a tray lower component, a tray upper component and a leveling mechanism, wherein the bottom end of the tray lower component is provided with a molding surface, and the tray lower component has an upward opening formed by the tray middle frame; the tray upper component covers the opening to form a receiving cavity; the leveling mechanism is arranged in the receiving cavity, and the leveling mechanism is respectively connected to the tray lower component and the tray upper component, and the leveling mechanism is used to adjust the angle of the molding surface relative to the resin liquid surface.

[0008] Furthermore, one end of the leveling mechanism passes through the upper component on the pallet and is exposed outside the upper component on the pallet, and the leveling mechanism is provided with an adjustment end for adjusting the angle of the molding surface relative to the upper component on the pallet, and the adjustment end is exposed outside the upper component on the pallet.

[0009] Furthermore, the leveling mechanism includes a spring and an adjusting bolt, one end of the adjusting bolt is screwed to the lower tray component, and the other end of the adjusting bolt is the adjusting end; the spring is located in the accommodating cavity, the spring is sleeved outside the adjusting bolt, and the spring is respectively connected to the lower tray component and the upper tray component.

[0010] Furthermore, the photo-curing molding platform also includes a sealing gasket, which is respectively clamped between the upper tray component and the lower tray component, and is used to seal the receiving cavity.

[0011] Furthermore, the upper component of the tray is provided with a connecting frame, the connecting frame extends into the accommodating cavity, the sealing gasket is sleeved outside the connecting frame, the outer side of the sealing gasket is attached to the inner side of the lower component of the tray, and the upper component of the tray can slide relative to the lower component of the tray.

[0012] Furthermore, the tray lower assembly includes a tray bottom plate, the tray bottom plate is fixed to the bottom end of the tray middle frame, and the bottom surface of the tray bottom plate is the molding surface.

[0013] Furthermore, the tray bottom plate and the tray middle frame are an integrally formed structure.

[0014] Furthermore, the photo-curing molding platform further comprises a tray bracket, one end of which is detachably mounted on the tray upper component.

[0015] Furthermore, the photocuring molding platform also includes a locking arm, the upper component of the tray is provided with a slot, one end of the tray bracket is inserted into the slot, and the locking arm is hinged to the tray bracket; the locking arm rotates relative to the tray bracket to lock the tray bracket and the upper component of the tray.

[0016] Furthermore, a clearance opening is provided at the top of the upper component of the pallet, the clearance opening is communicated with the slot, the top of the locking arm extends out of the clearance opening, and the bottom end of the locking arm is located in the slot; the locking arm rotates relative to the pallet bracket to change the distance that the bottom end of the locking arm extends out of the pallet bracket; when the distance that the bottom end of the locking arm extends out of the pallet bracket reaches the maximum, the bottom end of the locking arm abuts against the upper component of the pallet and lifts the pallet bracket, and the pallet bracket is interference fit with the slot.

[0017] The technical solution provided by the present application may include the following beneficial effects: the tray lower component forms an upward opening through the tray middle frame, the tray upper component is used to cover the opening and form a receiving cavity, and the leveling mechanism is arranged in the receiving cavity. When the tray lower component is immersed in the resin pool, the resin will only adhere to the outer surface of the tray middle frame and will not flow into the receiving cavity, thereby preventing the resin from adhering to the leveling mechanism and preventing the resin from affecting the use of the leveling mechanism. While achieving the effect of sealing the receiving cavity, the leveling mechanism can also be used to adjust the angle of the molding surface relative to the resin liquid surface; in addition, the resin can be prevented from adhering to the upper surface of the tray lower component, thereby reducing the amount of resin adhering to the tray lower component and reducing the waste of resin when cleaning the light-curing molding platform.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 It is a structural schematic diagram of an existing forming platform;

[0021] Figure 2 is a schematic structural diagram of a photo-curing molding platform shown in an embodiment of the present application;

[0022] Figure 3 is an exploded view of a photo-stereolithography platform shown in an embodiment of the present application;

[0023] Figure 4It is a structural schematic diagram of a pallet upper component and a pallet bracket shown in an embodiment of the present application;

[0024] Figure 5 is a cross-sectional view of a photo-curing molding platform shown in an embodiment of the present application;

[0025] Figure 6 It is a schematic diagram of the tray bracket shown in the embodiment of the present application when it is interlocked with the components on the tray.

[0026] Figure numerals: tray lower component 1; receiving cavity 11; tray middle frame 12; tray bottom plate 13; tray upper component 2; tray body 21; connecting frame 211; gasket 212; tray cover 22; clearance opening 221; slot 23; leveling mechanism 3; spring 31; adjusting bolt 32; tray bracket 4; locking arm 5. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0028] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In view of the above problems, an embodiment of the present application provides a photocuring molding platform, which can avoid wasting resin and reduce the difficulty of cleaning the photocuring molding platform.

[0032] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0033] Figure 2 It is a schematic diagram of the structure of the photo-curing molding platform shown in the embodiment of the present application.

[0034] See also Figure 2 The photocuring molding platform includes a tray lower component 1, a tray upper component 2 and a leveling mechanism 3. A molding surface is provided at the bottom end of the tray lower component 1, and the tray lower component 1 can extend into the resin pool so that the molding surface is in the resin liquid. After the resin pool is irradiated with a specific wavelength for a long time, part of the resin in the resin pool will be photocured, and the photocured resin can adhere to the molding surface.

[0035] Figure 3 1 is an exploded view of the photo-curing molding platform shown in the embodiment of the present application.

[0036] See also Figure 2-3 The lower tray component 1 has a tray middle frame 12, and the tray middle frame 12 forms a circle. The top of the tray middle frame 12 forms an opening, and the opening faces upward. The upper tray component 2 is located above the lower tray component 1, and the upper tray component 2 covers the opening. The upper tray component 2 and the tray middle frame 12 together form a closed receiving chamber 11. The upper tray component 2 can move up and down or tilt relative to the lower tray component 1. The leveling mechanism 3 is arranged in the receiving chamber 11, wherein the leveling mechanism 3 is at least partially received in the receiving chamber 11, and the receiving chamber 11 can protect the leveling mechanism 3. In addition, the closed receiving chamber 11 can also prevent the resin liquid from entering the receiving chamber 11 and contacting the leveling mechanism 3 when the lower tray component 1 enters the resin pool. The leveling mechanism 3 is respectively connected to the lower component 1 of the tray and the upper component 2 of the tray. The leveling mechanism 3 is used to adjust the angle of the molding surface relative to the upper component 2 of the tray. Specifically, the leveling mechanism 3 can be used to adjust the angle of the molding surface relative to the resin liquid level in the resin pool so that the molding surface is parallel to the resin liquid level, ensuring that the molding surface will not have one side adhered to the solidified resin and the other side not adhered to the solidified resin.

[0037] The tray lower component 1 forms an upward opening through the tray middle frame 12, and the tray upper component 2 is used to cover the opening to form a receiving cavity 11, and the leveling mechanism 3 is arranged in the receiving cavity 11. When the tray lower component 1 is immersed in the resin pool, the resin will only adhere to the outer surface of the tray middle frame 12 and will not flow into the receiving cavity 11, thereby preventing the resin from adhering to the leveling mechanism 3 and preventing the resin from affecting the use of the leveling mechanism 3. While achieving the effect of sealing the receiving cavity 11, the leveling mechanism 3 can also be used to adjust the angle of the molding surface relative to the resin liquid surface; in addition, it can also prevent the resin from adhering to the upper surface of the tray lower component 1, thereby reducing the amount of resin adhering to the tray lower component 1 and reducing the waste of resin when cleaning the light-curing molding platform.

[0038] See also Figure 2-3 In some embodiments, one end of the leveling mechanism 3 passes through the upper component 2 of the pallet and is exposed outside the upper component 2 of the pallet. The leveling mechanism 3 is provided with an adjustment end for adjusting the angle of the molding surface relative to the upper component 2 of the pallet. The adjustment end is exposed outside the upper component 2 of the pallet. The user can adjust the angle of the molding surface relative to the polymer film in the resin pool by operating the adjustment end without separating the upper component 2 of the pallet and the lower component 1 of the pallet. Preferably, the adjustment end is located on the upper surface of the upper component 2 of the pallet to prevent the resin liquid from getting on the adjustment end after the lower component 1 of the pallet is immersed in the resin pool. In other embodiments, the leveling mechanism 3 can pass through the lower component 1 of the pallet and be exposed outside the lower component 1 of the pallet, as long as the end of the leveling mechanism 3 exposed outside the lower component 1 of the pallet is higher than the resin pool.

[0039] See also Figure 3 In this embodiment, the leveling mechanism 3 includes a spring 31 and an adjusting bolt 32. One end of the adjusting bolt 32 is screwed to the lower tray component 1, and the other end of the adjusting bolt 32 extends out of the upper tray component 2. The end of the adjusting bolt 32 extending out of the upper tray component 2 is the adjusting end. The user can use a screwdriver to rotate the adjusting bolt 32 to make the upper tray component 2 and the lower tray component 1 move closer to each other or move away from each other. Specifically, there are four leveling mechanisms 3, which are rectangularly distributed at the four corners of the receiving cavity 11. The user can rotate one of the adjusting bolts 32 to control the corresponding side of the lower tray component to rise or fall. The spring 31 is located in the receiving cavity 11, and the spring 31 is sleeved outside the adjusting bolt 32. The spring 31 is connected to the lower tray component 1 and the upper tray component 2 respectively. The spring 31 is compressed by the lower tray component 1 and the upper tray component 2 to generate a preload. The lower tray component 1 can maintain the shape under the preload to ensure that the molding surface does not shake when the light-cured resin is adhered.

[0040] See also Figure 2-3In some embodiments, the photocuring molding platform further includes a sealing pad, which is respectively sandwiched between the upper tray component 2 and the lower tray component 1. The sealing pad is used to seal the receiving cavity 11, and the sealing pad can prevent the resin liquid in the resin pool from flowing into the receiving cavity 11. The sealing pad can be pasted on the upper tray component 2, and the lower tray component 1 is configured to be movable relative to the sealing pad; or the sealing pad can be pasted on the lower tray component 1, and the upper tray component 2 is configured to be movable relative to the sealing pad, so as to ensure that the leveling mechanism 3 can adjust the angle of the molding surface relative to the resin liquid surface while achieving the effect of sealing the receiving cavity 11. The sealing pad can be a silicone pad or a rubber pad.

[0041] See also Figure 3 The upper component 2 of the tray is provided with a rectangular connection frame 211, the connection frame 211 extends into the receiving cavity 11, the sealing gasket is sleeved outside the connection frame 211, the lower component 1 of the tray is sleeved outside the connection frame 211, and the outer side of the sealing gasket is attached to the inner side of the lower component 1 of the tray. The upper component 2 of the tray can slide relative to the lower component 1 of the tray, ensuring that the leveling mechanism 3 can adjust the angle of the molding surface relative to the resin liquid surface while achieving the sealing effect of the receiving cavity 11. Specifically, the sealing gasket can be selectively pasted on the outer side of the connection frame 211, or on the outer side of the lower component 1 of the tray. By providing the connection frame 211 on the upper component 2 of the tray, the upper component 2 of the tray and the lower component 1 of the tray can be more tightly combined, and the overall sealing of the light-curing molding platform can be better. In other embodiments, the upper component 2 of the tray can be sleeved outside the lower component 1 of the tray, so that the top of the lower component 1 of the tray extends into the upper component 2 of the tray, the sealing gasket is sleeved on the outer side of the lower component 1 of the tray, and the upper component 2 of the tray is surrounded by the sealing gasket.

[0042] See also Figure 2-3 , the lower assembly 1 of the pallet includes a pallet bottom plate 13. The height of the pallet middle frame 12 is 25 to 30 mm. The pallet bottom plate 13 is fixed to the bottom end of the pallet middle frame 12. The receiving cavity 11 is located in the pallet middle frame 12. The bottom surface of the pallet bottom plate 13 is a molding surface. In this embodiment, the upper surface of the pallet bottom plate 13 is provided with a stud for use with the adjusting bolt 32. The pallet middle frame 12 is in a groove shape. The bottom end of the pallet middle frame 12 is provided with a through hole corresponding to the stud. The stud passes through the through hole and enters the receiving cavity 11. The adjusting bolt 32 is screwed to the stud. In order to ensure that the resin does not enter the gap between the pallet middle frame 12 and the pallet bottom plate 13, the pallet middle frame 12 and the pallet bottom plate 13 are bonded by a sealant. While ensuring that the pallet middle frame 12 and the pallet bottom plate 13 are tightly combined, the sealing between the pallet middle frame 12 and the pallet bottom plate 13 is also ensured. In other embodiments, the pallet middle frame 12 and the pallet bottom plate 13 are an integrally formed structure, the pallet middle frame 12 is a square frame, the pallet bottom plate 13 is the bottom end of the pallet lower component 1, and the upper surface of the pallet bottom plate 13 is provided with a stud for use with the adjusting bolt 32, and the adjusting bolt 32 is screwed onto the stud.

[0043] Figure 4 It is a schematic structural diagram of the pallet upper component and the pallet bracket shown in the embodiment of the present application.

[0044] See also Figure 2-4 The photocuring molding platform also includes a tray bracket 4, one end of which is detachably mounted on the tray upper component 2. The tray bracket 4 is used to connect with an external lifting mechanism, which controls the lifting of the tray bracket 4 to drive the tray lower component 1 and the tray upper component 2, so that the molding surface can be immersed in the resin pool. In addition, by designing the tray bracket 4 and the tray upper component 2 as a detachable structure, it is convenient for users to remove the tray upper component 2 from the tray bracket 4.

[0045] See also Figure 3-4 In some embodiments, the photo-curing molding platform further includes a locking arm 5, a slot 23 is provided on the tray upper component 2, one end of the tray bracket 4 is inserted into the slot 23, the locking arm 5 is hinged to the tray bracket 4, and the locking arm 5 can rotate relative to the tray bracket 4. The locking arm 5 rotates relative to the tray bracket 4 to lock the tray bracket 4 and the tray upper component 2. The locking arm 5 can also rotate relative to the tray bracket 4 to release the locking between the tray bracket 4 and the tray upper component 2, and then the staff can remove the tray upper component 2 from the tray bracket 4.

[0046] Figure 5 is a cross-sectional view of a photo-curing molding platform shown in an embodiment of the present application; Figure 6 It is a schematic diagram of the tray bracket shown in the embodiment of the present application when it is interlocked with the components on the tray.

[0047] See also Figure 4-6 The top of the upper tray component 2 is provided with a clearance opening 221, which is connected to the slot 23. The top of the locking arm 5 extends out of the clearance opening 221. The top of the locking arm 5 is the operating end. The user can control the locking arm 5 to rotate relative to the tray bracket 4 by rotating the operating end. The bottom end of the locking arm 5 is located in the slot 23. The end of the locking arm 5 away from the operating end is not cylindrical. The locking arm 5 can be rotated relative to the tray bracket 4 to change the size of the portion of the bottom end of the locking arm 5 extending out of the tray bracket 4, thereby changing the distance that the bottom end of the locking arm 5 extends out of the tray bracket 4. When the distance that the bottom end of the locking arm 5 extends out of the tray bracket 4 reaches the maximum, the bottom end of the locking arm 5 abuts against the upper tray component 2 and lifts the tray bracket 4, and the tray bracket 4 and the slot 23 are interference-fitted; when the distance that the bottom end of the locking arm 5 extends out of the tray bracket 4 reaches the minimum, the tray bracket 4 does not have an interference fit with the slot 23, and the tray bracket 4 can slide freely in the slot 23, and the tray bracket 4 can also be pulled out of the slot 23.

[0048] See also Figure 3-6The upper tray assembly 2 includes a tray body 21 and a tray cover 22. The tray cover 22 is mounted on the top of the tray body 21. The opening 221 is located at the top of the tray cover 22. The upper surfaces of the tray cover 22 and the tray body 21 are surrounded to form a slot 23. In one embodiment, the user can rotate the locking arm 5 to rotate the locking arm 5. The bottom end of the locking arm 5 can be received in the tray bracket 4. At this time, the thickness of one end of the locking arm 5 in the slot 23 is less than the height of the slot 23. The end of the locking arm 5 in the slot 23 can slide freely in the slot 23. The user can also rotate the locking arm 5 to make the bottom end of the locking arm 5 extend out of the tray bracket 4 and abut against the upper tray assembly 2. The tray bracket 4 is lifted upward under the reaction force of the locking arm 5. The upper surface of one end of the tray bracket 4 in the slot 23 abuts against the inner side of the tray cover 22, so that the tray bracket 4 and the tray cover 22 are interference fit. In other embodiments, the bottom end of the locking arm 5 is always located outside the tray bracket 4. The user can adjust the size of the portion of the bottom end of the locking arm 5 that extends out of the tray bracket 4 by rotating the locking arm 5. When the distance that the bottom end of the locking arm 5 extends out of the tray bracket 4 reaches the minimum, the distance from the upper surface of the portion of the tray bracket 4 extending into the slot 23 to the bottom end of the locking arm 5 is 0.2 to 2 mm, and the tray bracket 4 can slide relative to the slot 23; when the distance that the bottom end of the locking arm 5 extends out of the tray bracket 4 reaches the maximum, the upper surface of the portion of the tray bracket 4 extending into the slot 23 squeezes the inner side surface of the tray cover 22, and the bottom end of the locking arm 5 squeezes the upper surface of the tray body 21, so that the tray bracket 4 and the tray cover 22 have an interference fit, and the tray bracket 4 and the pallet upper component 2 are relatively fixed.

[0049] See also Figure 3-4 In some embodiments, the upper tray component 2 is provided with a gasket 212, which is embedded in the surface of the upper tray component 2, and the bottom end of the locking arm 5 abuts against the gasket 212. Specifically, the gasket 212 is located at the top of the tray body 21. The gasket 212 can protect the tray body 21 and prevent the locking arm 5 from scratching the tray body 21 when the locking arm 5 rotates.

[0050] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0051] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A light-curing molding platform, characterized in that: A lower tray assembly, wherein the bottom end of the lower tray assembly is provided with a molding surface, and the lower tray assembly has an upward opening formed by the tray middle frame; An upper tray component, the upper tray component covers the opening to form a receiving cavity; A leveling mechanism, the leveling mechanism is disposed in the receiving cavity, the leveling mechanism is connected to the lower tray component and the upper tray component respectively, and the leveling mechanism is used to adjust the angle of the molding surface relative to the resin liquid surface; One end of the leveling mechanism passes through the upper component on the pallet and is exposed outside the upper component on the pallet. The leveling mechanism is provided with an adjustment end for adjusting the angle of the forming surface relative to the upper component on the pallet, and the adjustment end is exposed outside the upper component on the pallet.

2. The photo-curing platform according to claim 1, characterized in that: The leveling mechanism includes a spring and an adjusting bolt, one end of the adjusting bolt is screwed to the lower component of the tray, and the other end of the adjusting bolt is the adjusting end; the spring is located in the receiving cavity, the spring is sleeved outside the adjusting bolt, and the spring is respectively connected to the lower component of the tray and the upper component of the tray.

3. The photo-stereolithography platform according to claim 1, characterized in that: It also includes a sealing gasket, which is respectively clamped between the upper tray component and the lower tray component, and is used to seal the receiving cavity.

4. The photo-curing platform according to claim 3, characterized in that: The upper tray component is provided with a connecting frame, the connecting frame extends into the receiving cavity, the sealing gasket is sleeved outside the connecting frame, the outer side of the sealing gasket is attached to the inner side of the lower tray component, and the upper tray component can slide relative to the lower tray component.

5. The photo-curing platform according to claim 1, characterized in that: The tray lower assembly comprises a tray bottom plate, the tray bottom plate is fixed to the bottom end of the tray middle frame, and the bottom surface of the tray bottom plate is the molding surface.

6. The light-curing molding platform according to claim 5, characterized in that: The tray bottom plate and the tray middle frame are an integrally formed structure.

7. The photo-curing platform according to claim 1, characterized in that: It also includes a tray bracket, one end of which is detachably mounted on the tray upper component.

8. The photo-curing platform according to claim 7, characterized in that: It also includes a locking arm. The pallet upper component is provided with a slot, one end of the pallet bracket is inserted into the slot, and the locking arm is hinged to the pallet bracket; the locking arm rotates relative to the pallet bracket to lock the pallet bracket and the pallet upper component.

9. The photo-curing platform according to claim 8, characterized in that: A clearance opening is provided at the top of the upper component of the pallet, the clearance opening is communicated with the slot, the top of the locking arm extends out of the clearance opening, and the bottom end of the locking arm is located in the slot; the locking arm rotates relative to the pallet bracket to change the distance that the bottom end of the locking arm extends out of the pallet bracket; when the distance that the bottom end of the locking arm extends out of the pallet bracket reaches the maximum, the bottom end of the locking arm abuts against the upper component of the pallet and lifts the pallet bracket, and the pallet bracket is interference fit with the slot.

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