Photocuring material box, photocuring forming device, box body assembly and frame body assembly

Abstract

The invention provides a photo-curing material box, a photo-curing forming device, a box body assembly and a frame body assembly, the photo-curing material box comprises a box body and a light-transmitting film, a first opening is formed in the bottom of the box body, and the light-transmitting film is detachably arranged at the bottom of the box body and packages the first opening. According to the photo-curing material box, the light-transmitting film is convenient to replace, the replacement process can be simplified, and the replacement efficiency of the light-transmitting film is effectively improved.

Description

Technical Field

[0001] This application belongs to the field of stereolithography, and more specifically, relates to a stereolithography cartridge, a stereolithography apparatus, a cartridge assembly, and a frame assembly. Background Art

[0002] Stereolithography technology is often used in 3D printing. It uses ultraviolet light or other visible light sources to irradiate a liquid photosensitive resin, causing it to cure into the desired shape in a short time. By repeating this curing process and stacking layer by layer, the final three-dimensional solid model is constructed.

[0003] In a stereolithography apparatus, the photosensitive resin is stored in a stereolithography cartridge. A light-transmitting film that can transmit curing light is provided at the bottom of the cartridge, enabling the photosensitive resin in the cartridge to be cured in a predetermined shape. The light-transmitting film of the cartridge needs to be replaced after a certain period of use, and the current replacement of the light-transmitting film is relatively complicated. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a stereolithography cartridge, a stereolithography apparatus, a cartridge assembly, and a frame assembly to solve the technical problem of complicated replacement of the light-transmitting film in the prior art.

[0005] To achieve the above purpose, the technical solution adopted in this application is: to provide a stereolithography cartridge, which includes:

[0006] A cartridge body having a bottom of the cartridge body, and a first opening is provided at the bottom of the cartridge body;

[0007] A light-transmitting film is detachably provided at the bottom of the cartridge body and seals the first opening.

[0008] Optionally, the stereolithography cartridge further includes a frame having a second opening. The frame is detachably connected to the bottom of the cartridge body, and at least part of the first opening and the second opening coincide. The light-transmitting film is positioned at the bottom of the cartridge body through the frame.

[0009] Optionally, the light-transmitting film is located between the frame and the bottom of the cartridge body, and the light-transmitting film is pressed against the bottom of the cartridge body through the frame.

[0010] Optionally, the stereolithography cartridge further includes a fastening member. The fastening member is connected to one of the cartridge body and the frame, and the other of the cartridge body and the frame has a fastening portion. The fastening member is fastened to the fastening portion so that the frame presses the light-transmitting film against the bottom of the cartridge body.

[0011] Optionally, the fastening member includes a fastening handle and a buckle. The buckle has a fastening end. The fastening portion is located on the cartridge body, and the fastening portion has a fastening surface facing away from the frame;

[0012] One end of the buckle handle is hinged to the frame body through a first hinge shaft, and the other end of the buckle handle extends to the side of the buckling part away from the frame body and is hinged to the buckle through a second hinge shaft, so that the buckling end can rotate and buckle on the buckling surface.

[0013] Optionally, the buckling surface successively has a first contact position and a second contact position along the rotation direction of the buckling of the buckling end. The first contact position is the position on the buckling surface closest to the second hinge shaft, and the distance between the first contact position and the axis of the second hinge shaft is less than the distance from the buckling end to the axis of the second hinge shaft. The light-curing material box includes a limiting structure for restricting the buckling end from rotating along the buckling rotation direction, and the limiting structure is configured to limit the buckling end at the second contact position.

[0014] Optionally, the buckling rotation direction of the buckling end is the direction in which the buckling end approaches the buckle handle from the buckling surface. The limiting structure is a blocking member arranged on the side of the buckling surface close to the buckle handle, and the buckling end is located at the second contact position and abuts against the blocking member.

[0015] Optionally, the buckle has a pulling part, the pulling part is connected to the buckling end, and the second hinge shaft is located between the pulling part and the buckling end. The box body is provided with a receiving space corresponding to the pulling part, and the pulling part is located in the receiving space.

[0016] Optionally, the buckle handle is provided with a third opening corresponding to the buckling part and the buckling end to expose the buckling part and the buckling end.

[0017] Optionally, a first elastic return mechanism for enabling the buckle handle to rotate in a first direction is arranged between the frame body and the buckle handle. The first direction is the opposite direction of the buckling rotation direction of the buckle handle; and / or,

[0018] A second elastic return mechanism for enabling the buckle to rotate in a second direction is arranged between the buckle handle and the buckle. The second direction is the opposite direction of the buckling rotation direction of the buckle.

[0019] Optionally, a pressing tongue is arranged on one side of the frame body, a pressing strip is arranged on the edge of the first opening of the box body, the pressing tongue is inserted between the pressing strip and the box body, and a buckling member is arranged on at least the opposite side of the pressing tongue on the frame body; or,

[0020] One side of the frame body is hinged to the box body through a third hinge shaft, and a buckling member is arranged on at least the opposite side of the third hinge shaft on the frame body.

[0021] Optionally, positioning columns are arranged on the side of the frame body facing the light-transmitting film, and barb structures are arranged on the positioning columns.

[0022] Optionally, a convex structure is arranged around the first opening on the box body, and the frame body is arranged on the side of the convex structure away from the first opening, so that the light-transmitting film forms a stepped structure;

[0023] A sealing structure is provided between the box body and the light-transmitting film. The sealing structure is located on a side of the protruding structure away from the first opening, and the sealing structure is located between the box body and the frame body.

[0024] The present application also provides a photocuring molding device, which includes the above-mentioned photocuring material box.

[0025] Optionally, the light-curing molding device further includes:

[0026] A base, on which the light-curing material box is arranged;

[0027] A light source assembly, wherein the light source assembly emits light toward the light-transmitting film of the light-curing cartridge;

[0028] A support member is provided on one side of the base;

[0029] A forming platform is provided on the support member;

[0030] The side where the tongue of the light-curing cartridge is located and the support member are located on the same side of the base, or the side where the third hinge shaft of the light-curing cartridge is located and the support member are located on the same side of the base.

[0031] The present application also provides a box assembly for a photocuring device, the box assembly comprising:

[0032] The box body has a first opening at the bottom thereof;

[0033] A pressure strip is provided on the box body and is located at the edge of the first opening;

[0034] The buckling portion and / or the fastening member, the buckling portion is arranged on the box body and at least on the opposite side of the pressure strip; the fastening member is arranged on the box body and at least on the opposite side of the pressure strip, the fastening member includes a buckle handle and a buckle, one end of the buckle handle is hinged to the box body through a first hinge shaft, and the other end of the buckle handle is hinged to the buckle through a second hinge shaft.

[0035] The present application also provides a frame assembly for a photocuring device, the frame assembly comprising:

[0036] a frame having a second opening;

[0037] A tongue depressor is provided on one side of the frame;

[0038] The fastening member and / or the fastening portion are arranged on the frame and at least on the opposite side of the depressing tongue. The fastening member includes a fastening handle and a buckle. One end of the fastening handle is hinged to the frame through a first hinge shaft, and the other end of the fastening handle is hinged to the buckle through a second hinge shaft; the fastening portion is arranged on the frame and at least on the opposite side of the depressing tongue.

[0039] The beneficial effects of the photocuring cartridge and the photocuring forming device provided by this application are as follows: Compared with the prior art, the light-transmitting film in the photocuring cartridge of the embodiment of this application is detachably arranged at the bottom of the cartridge body to seal the first opening at the bottom of the cartridge body, which is convenient for replacing the light-transmitting film, simplifies the replacement process, and effectively improves the replacement efficiency of the light-transmitting film. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 Schematic diagram of the photocuring cartridge in the embodiment of this application;

[0042] Figure 2 Schematic diagram of the cartridge body in the embodiment of this application;

[0043] Figure 3 Schematic diagram of one perspective of the frame body in the embodiment of this application;

[0044] Figure 4 Schematic diagram of another perspective of the frame body in the embodiment of this application;

[0045] Figure 5 Schematic diagram of the frame body in the embodiment of this application installing the light-transmitting film;

[0046] Figure 6 Schematic diagram of the installation of the frame body in the embodiment of this application;

[0047] Figure 7 Schematic diagram of the principle of a snap-fit method in the embodiment of this application;

[0048] Figure 8 Schematic diagram of the principle of another snap-fit method in the embodiment of this application;

[0049] Figure 9 Enlarged schematic diagram of the snap-fit part in the embodiment of this application;

[0050] Figure 10 Schematic diagram of the photocuring forming device in the embodiment of this application.

[0051] Reference numerals: photocuring cartridge 100, cartridge body 1, first opening 11, buckling portion 12, buckling surface 121, first contact position 1211, second contact position 1212, pressing strip 13, blocking member 14, convex structure 15, frame body 2, second opening 21, pressing tongue 22, positioning post 23, buckling member 3, buckling handle 31, buckle 32, buckling end 321, pulling portion 322, first hinge shaft 33, second hinge shaft 34, light-transmitting film 4, sealing structure 5, base 200, light source assembly 300, support member 400, forming platform 500. Detailed implementation manners

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0053] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0054] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0056] Please refer to Figure 1 and Figure 2 , and now the photocuring cartridge provided by the embodiment of the present application will be described. The photocuring cartridge includes:

[0057] A cartridge body 1, and a first opening 11 is provided at the bottom of the cartridge body 1;

[0058] A light-transmitting film 4, which is detachably disposed at the bottom of the cartridge body 1 and seals the first opening 11.

[0059] As Figure 2 shown, the cartridge body 1 is used to store photosensitive resin, which is the basis for stereolithography. The photosensitive resin will undergo a curing reaction under the irradiation of specific light sources such as ultraviolet light or laser, and thus stack layer by layer to form a solid object. A first opening 11 is provided at the bottom of the cartridge body 1. As Figure 6 shown, a light-transmitting film 4 is encapsulated in the first opening 11. The light-transmitting film 4 can support the photosensitive resin and transmit light. The light for curing passes through the light-transmitting film 4 and irradiates the photosensitive resin in the cartridge body 1, and the photosensitive resin realizes stereolithography. The light-transmitting film 4 is usually a release film, which is made of materials such as polyester materials, polyimide materials, and fluoroplastic materials. The release film can not only support the material and transmit light, but also has anti-stickiness and easy peelability, which can prevent the photosensitive resin from adhering during stereolithography and help easily peel off the support structure or the formed part after the curing and forming is completed. The light-transmitting film 4 can be provided with one layer, two layers or more layers. For example, a scattering film is provided on the basis of the release film to scatter light, and the photosensitive resin realizes transparent stereolithography. In this embodiment, the light-transmitting film 4 is detachably provided at the bottom of the cartridge body 1. When replacing the light-transmitting film, only need to remove the light-transmitting film and replace it with a new one, thus simplifying the replacement process and effectively improving the replacement efficiency of the light-transmitting film.

[0060] Please refer to Figures 3 to 6 , in some embodiments of the present application, the stereolithography cartridge further includes a frame body 2. The frame body 2 has a second opening 21. The frame body 2 is detachably connected to the bottom of the cartridge body 1, and at least part of the first opening 11 and the second opening 21 coincide, and the light-transmitting film 4 is positioned at the bottom of the cartridge body 1 through the frame body 2.

[0061] As Figures 3 - 5 shown, the frame body 2 in this embodiment is mainly used to detachably mount the light-transmitting film 4 to the cartridge body 1. The frame body 2 has a second opening 21, and at least part of the second opening 21 and the first opening 11 coincide, so that light can enter the cartridge body 1 through the light-transmitting film 4. The frame body 2 can be an integral structure or composed of multiple side frames. Since it is difficult to directly mount the light-transmitting film 4 on the cartridge body 1, therefore, in this embodiment, the light-transmitting film 4 is positioned at the bottom of the cartridge body 1 through the frame body 2, which can make the installation of the light-transmitting film 4 more stable and not easily cause problems such as liquid leakage.

[0062] Please refer to Figure 1, in some embodiments of the present application, the light-transmitting film 4 is located between the bottom of the frame 2 and the cartridge 1, and the light-transmitting film 4 is pressed against the bottom of the cartridge 1 by the frame 2. Conventional light-transmitting films 4 are usually fixed by accessories for fixing the film to form an integral film assembly. When replacing the film, the entire film assembly needs to be replaced. In the light-curing cartridge of this embodiment, the light-transmitting film 4 is located between the bottom of the frame 2 and the cartridge 1 and is pressed against the bottom of the cartridge 1 by the frame 2. Not only is the stability high, but there is no need to replace the remaining parts. Only one light-transmitting film 4 is required, and there is no need to equip film replacement accessories, which can save accessory costs, packaging costs, and labor costs.

[0063] Please refer to Figures 3 to 6 , in some embodiments of the present application, the light-curing cartridge further includes a fastening member. The fastening member is connected to one of the cartridge and the frame, and the other of the cartridge and the frame has a fastening portion. The fastening member is fastened to the fastening portion so that the frame presses the light-transmitting film against the bottom of the cartridge 1. In this embodiment, the frame 2 and the cartridge 1 are detachably connected by the cooperation of the fastening member 3 and the fastening portion 12. The fastening portion 12 and the fastening member 3 can be respectively arranged on the cartridge 1 and the frame 2 according to actual situations. Specifically, the fastening portion 12 can be arranged on the cartridge 1 and the fastening member 3 can be arranged on the frame 2; or the fastening portion 12 can be arranged on the frame 2 and the fastening member 3 can be arranged on the cartridge 1; or a part of the fastening member 3 can be arranged on the cartridge 1 and another part of the fastening member 3 can be arranged on the frame 2, and a part of the fastening portion 12 is arranged on the cartridge 1 and another part of the fastening portion 12 is arranged on the frame 2 correspondingly. The fastening portion 12 can be a part of the cartridge 1 or the frame 2 itself, or a separate structural member and is installed on the cartridge 1 or the frame 2. The latter has a better effect. The fastening portion 12 is a separate structural member and is connected to the cartridge 1 or the frame 2 in a detachable connection manner, and can be replaced after it is worn.

[0064] The light-curing cartridge of this embodiment clamps and fixes the light-transmitting film 4 through the frame 2 and the cartridge 1 and realizes locking through the fastening of the fastening member 3. When the light-transmitting film 4 needs to be replaced, open the fastening member 3, remove the frame 2, remove the old film, install a new film, reinstall the frame 2 and use the fastening member 3 to fasten the frame 2 and the cartridge 1 again, and the film replacement operation can be completed. The entire film replacement operation is very simple and there is no need to use professional tools to screw off / install screws.

[0065] Please refer to Figure 2 , Figure 3 and Figure 9, in some embodiments of the present application, the fastening member 3 includes a fastening handle 31 and a buckle 32. The buckle 32 has a fastening end 321. The fastening portion 12 is located on the box body 1. The fastening portion 12 has a fastening surface 121 facing away from the frame body 2. One end of the fastening handle 31 is hinged to the frame body 2 through a first hinge shaft 33, and the other end of the fastening handle 31 extends to the side of the fastening portion 12 facing away from the frame body 2 and is hinged to the buckle 32 through a second hinge shaft 34, so that the fastening end 321 can rotate and be fastened to the fastening surface 121.

[0066] The box body 1 and the frame body 2 are locked by the fastening member 3. The specific structure of the fastening member 3 can adopt a fixed structure or a flip structure. The fixed structure uses a fixed convex structure 15 to fasten the fastening portion 12 to achieve fastening, while the flip structure uses a rotatable component to fasten the fastening portion 12 to achieve fastening. Among them, the fixed structure mainly relies on the elastic deformation of the material itself to achieve fastening, and the fastening stability is relatively poor, and it is not suitable for repeated disassembly and assembly. Repeated disassembly will affect the tightness of the fastening. For the simple flip structure fastening, after the component is flipped, it fastens the fastening portion 12 from the side, and it is still prone to wear.

[0067] In this embodiment, the fastening member 3 includes two parts, a fastening handle 31 and a buckle 32. The fastening handle 31 is hinged to the frame body 2 through a first hinge shaft 33, and the buckle 32 is hinged to the fastening handle 31. Two hinges are adopted. The fastening handle 31 extends to the side of the fastening portion 12 facing away from the frame body 2 and is hinged to the buckle 32 here, so that the fastening end 321 of the buckle 32 can rotate from the side of the fastening portion 12 facing away from the frame body 2 and be fastened to the fastening surface 121 of the fastening portion 12. The fastening surface 121 can be a plane or an arc surface and can be made into a relatively smooth surface to facilitate the movement of the fastening end 321 thereon. During the process of the fastening end 321 rotating around the second hinge shaft 34 to fasten the fastening portion 12, a force that presses the box body 1 and the frame body 2 against each other can be generated, thereby improving the stability of clamping the light-transmitting film 4, and it is not necessary to rely on the elasticity of the material of the fastening member 3 itself to achieve fastening. After repeated disassembly and assembly, the fastening can still be kept tight. This means that the light-curing material box of this embodiment can be replaced with a film more times and the film can be tightly clamped between the box body 1 and the frame body 2 to achieve sealing, thereby effectively extending the service life of the light-curing material box.

[0068] Please refer to Figure 7 and Figure 8, in some embodiments of the present application, along the buckling rotation direction of the buckling end 321, the buckling surface 121 successively has a first contact position 1211 and a second contact position 1212; the first contact position 1211 is the position on the buckling surface 121 closest to the axis of the second hinge shaft 34, and the distance between the first contact position 1211 and the axis of the second hinge shaft 34 is less than the distance from the buckling end 321 to the axis of the second hinge shaft 34. The light-curing cartridge includes a limiting structure for restricting the rotation of the buckling end 321 along the buckling rotation direction, and the limiting structure is configured to restrict the buckling end 321 at the second contact position 1212.

[0069] When the buckling member 3 is buckled, if the rotation distance of the buckling end 321 is insufficient, a stable buckling cannot be formed. If the buckling end 321 rotates excessively, it may also cause the buckling to fail. There is a very important position on the buckling surface 121, that is, the first contact position 1211. The first contact position 1211 is the position on the buckling surface 121 closest to the axis of the second hinge shaft 34. The function of the limiting structure is to limit the buckling end at the second contact position of the buckling surface. The limiting structure can adopt a limiting block that directly contacts the buckling end 321 and blocks its continuous rotation, or the limiting can be achieved by the abutment of the extending portion of the buckle 32 and the box body 1, or a blocking member can be provided between the buckle 32 and the buckle handle 31 to block the relative rotation of the two. The first contact position 1211 and the second contact position 1212 are successively arranged along the buckling rotation direction of the buckling end 321, that is to say, the second contact position 1212 is the position that the buckling end 321 can reach after rotating beyond the first contact position 1211 along the buckling rotation direction.

[0070] Take Figure  7 as an example. Figure 7 In Figure 7 the buckling rotation direction of the buckling end 321 is the clockwise direction, and the buckling end 321 rotates from the dotted line position to the solid line position, that is Figure 7 and Figure 8In the figure, the square at the first contact position 1211 represents the foot of the perpendicular line drawn from the center of the second hinge shaft 34 on the buckling surface 121. The second contact position 1212 is the position where the limiting structure blocks the buckling end 321. After the buckling end 321 contacts the buckling surface 121 and continues to rotate in the A direction, before the buckling end 321 rotates to the first contact position 1211, since the distance between the first contact position 1211 and the axis of the second hinge shaft 34 is less than the distance from the buckling end 321 to the axis of the second hinge shaft 34, the buckling end 321 will abut against the buckling surface 121 and produce a certain degree of elastic deformation, so that the frame body 2 and the box body 1 are abutted against each other, and the light-transmitting film 4 is pressed tightly. The elastic deformation here can be generated by one or more of the buckling handle 31, the buckle 32, the frame body 2, the box body 1 and the sealing structure 5. The frame body 2 and the box body 1 are abutted against each other, so that the buckling member 3 is subjected to a force close to the buckling portion 12. Under this force, the reaction force exerted by the buckling surface 121 on the buckling end 321 will force the buckling end 321 to rotate in the opposite direction of the A direction. At this time, the buckling is unstable. When the buckling end 321 rotates beyond the first contact position 1211, the reaction force exerted by the buckling surface 121 on the buckling end 321 will force the buckling end 321 to continue in the A direction. At this time, the problem of automatic disengagement will not occur. Since the limiting structure makes the buckling end 321 rotate at most to the second contact position 1212 and will not rotate forward any more, the buckling end 321 can abut against the second contact position 1212 to maintain the buckling effect. Therefore, the existence of the limiting structure can prevent the buckling end 321 from rotating excessively and causing buckling failure.

[0071] In the embodiment as Figure 8 shown, the buckling end 321 rotates from the dotted line position to the solid line position in the B direction. The B direction is opposite to the A direction and is the direction to move the buckling end 321 away from the buckling handle 31. In this embodiment, the first contact position 1211 is also the position where the perpendicular line drawn from the center of the second hinge shaft 34 intersects the buckling surface 121. This is the position on the buckling surface 121 closest to the axis of the second hinge shaft 34, while the second contact position 1212 is on the side of the buckling surface 121 away from the buckling handle 31. Similarly, when the buckling end 321 rotates to the second contact position 1212, it has exceeded the first contact position 1211. The limiting structure makes the buckling end 321 rotate at most to the second contact position 1212 and will not rotate forward any more. Therefore, in this embodiment, the buckling effect of the buckling end 321 can also be maintained, and the buckling end 321 can be prevented from rotating excessively and causing buckling failure.

[0072] Please refer to Figure 9 , in some embodiments of the present application, the buckling rotation direction of the buckling end 321 is the direction to move the buckling end 321 from the buckling surface close to the buckling handle 31. The limiting structure is a blocking member 14 provided on the side of the buckling surface 121 close to the buckling handle 31. The buckling end 321 is located at the second contact position 1212 and abuts against the blocking member. In the embodiment asFigure 7 He Ru Figure 8 In the two illustrated embodiments, the fastening rotation directions of the fastening end 321 are directions A and B, respectively, where direction A is the direction toward the fastening handle 31, and direction B is the direction away from the fastening handle 31. In this embodiment, the fastening rotation direction of the fastening end 321 is the direction that brings the fastening end 321 closer to the fastening handle 31 from the fastening surface, i.e., direction A. Compared to direction B, this allows the fastening end 321 to be closer to the fastening handle 31 in the fastened state, and during fastening, a tendency is created to bring the fastening handle 31 and the box body 1 closer to each other, thereby effectively improving the contact tightness between the fastening member 3 and the box body 1 and enhancing the stability of the fastening.

[0073] Since the buckling rotation direction of the buckling end 321 is direction A, a corresponding limiting structure is also required. The limiting structure in this embodiment is a blocking member 14 provided on the side of the buckling surface 121 close to the buckling handle 31. The blocking member 14 can be integrally formed with the buckling portion 12, or can be made separately and then installed on the buckling portion 12. This type of blocking member 14 has a simple structure and is easy to process. It directly contacts and blocks the buckling end 321, and has high reliability. In the buckled state, the buckling end 321 is located on the second contact position 1212 and abuts against the blocking member. At this time, the buckling end 321 will not move relative to each other due to the squeezing between the buckling end 321 and the buckling surface 121, and the stability is also higher.

[0074] See also Figure 9 In some embodiments of the present application, the buckle 32 has a handle portion 322 connected to the fastening end 321, and the second hinge shaft 34 is located between the handle portion 322 and the fastening end 321. The box body 1 has a storage space corresponding to the handle portion 322, and the handle portion 322 is located within the storage space. Directly turning the fastening end 321 to rotate is relatively difficult. In this embodiment, the buckle 32 has a handle portion 322 connected to the fastening portion. By turning the handle portion 322, the fastening end 321 can be rotated. Whether rotating the fastening end 321 to fasten or release the fastening, the operation is relatively convenient.

[0075] When the buckle 321 is buckled and rotated along direction A, since the second hinge shaft 34 is located between the handle portion 322 and the buckle end 321, the handle portion 322 will rotate in the direction close to the box body 1. The box body 1 is provided with a accommodating space corresponding to the handle portion 322, so that the handle portion 322 can be rotated into the accommodating space. When the buckle 32 is buckled, it can prevent external collisions with the handle portion 322 and affect the stability of the buckle, and make the appearance of the entire light-curing material box more regular.

[0076] The fastening parts of the light-curing material box in this embodiment are very convenient to lock and unlock. When fastening, it is only necessary to flip the handle part 322 and press it into the accommodating space. When unlocking, it is only necessary to pull the handle part 322 outward to achieve unlocking.

[0077] Please refer to Figure 4 and Figure 9 In some embodiments of the present application, a third opening is provided at the position of the buckle handle 31 corresponding to the buckling portion 12 and the buckling end 321 to expose the buckling portion 12 and the buckling end 321. Since the buckle handle 31 extends to the side of the buckling portion 12 away from the frame 2, generally, the buckle handle 31 will block the buckling portion 12 and also the buckling end 321, making it inconvenient for the user to observe whether the buckling end 321 rotates in place. Therefore, in this embodiment, a third opening is provided at the position of the buckle handle 31 corresponding to the buckling portion 12 and the buckling end 321, so that the buckling portion 12 and the buckling end 321 are exposed from the third opening. During the buckling and unbuckling processes by the user, the contact state between the buckling end 321 and the buckling portion 12 can be directly observed from the outside, making it easier to determine whether the operation is in place.

[0078] Please refer to Figure 9 In some embodiments of the present application, a first elastic return mechanism for rotating the buckle handle 31 in the first direction is provided between the frame 2 and the buckle handle 31, and the first direction is the opposite direction of the buckling rotation direction of the buckle handle 31. In the buckling and locking state, the first elastic return mechanism does not function. After the buckling is released, the first elastic return mechanism can relatively rotate the frame 2 and the buckle handle 31 in the opposite direction of the buckling direction, reducing manual operation and preventing the buckle handle 3 from returning to the buckling position and affecting the disassembly of the frame 2.

[0079] Similarly, in some embodiments of the present application, a second elastic return mechanism for rotating the buckle 32 in the second direction is provided between the buckle handle 31 and the buckle 32, and the second direction is the opposite direction of the buckling rotation direction of the buckle 32. In the buckling and locking state, the second elastic return mechanism does not function. After the buckling is released, the second elastic return mechanism can relatively rotate the buckle handle 31 and the buckle 32 in the opposite direction of the buckling direction, reducing manual operation and preventing the buckling portion from hooking the buckling portion 12 and affecting the disassembly of the frame 2.

[0080] Using only one of the first elastic return mechanism and the second elastic return mechanism can, to a certain extent, achieve the purpose of facilitating user operation. Of course, both elastic return mechanisms can also be provided. The first elastic return mechanism and the second elastic return mechanism can specifically adopt elastic structures such as torsion springs or elastic sheets.

[0081] Please refer to Figure 2 、 Figure 3 and Figure 6, in some embodiments of the present application, a tongue depressor 22 is provided on one side of the frame body 2, and a pressing strip 13 is provided on the edge of the first opening 11 of the box body 1. The tongue depressor 22 is inserted between the pressing strip 13 and the box body 1, and a fastening member 3 is provided on at least the opposite side of the tongue depressor 22 on the frame body 2. If the fastening members 3 are provided around the frame body 2 to fasten it to the box body 1, it is not easy to position the frame body 2 and the box body 1, resulting in more time required to adjust the fastening position. Also, the number of fastening members 3 will be relatively large, and the structure will be complex, which is not conducive to operation. Therefore, in this embodiment, a tongue depressor 22 is provided on one side of the frame body 2, and a pressing strip 13 is provided on the edge of the first opening 11 of the box body 1. When installing the frame body 2, the tongue depressor 22 can be first inserted between the pressing strip 13 and the box body 1, and then the fastening members 3 at other positions can be fastened, thereby reducing the time for adjusting the fastening position, reducing the number of fastening members 3, and making the operation more convenient. As for the arrangement of the fastening members 3, it is determined according to requirements. At least a fastening member 3 is provided on the opposite side of the tongue depressor 22 to fix the frame body 2, and fastening members 3 can also be provided on the remaining sides respectively to ensure the stability of holding the light-transmitting film 4 by the frame body 2 and the box body 1.

[0082] In some other embodiments of the present application, one side of the frame body 2 is hinged to the box body 1 through a third hinge shaft, and a fastening member 3 is provided on at least the opposite side of the third hinge shaft on the frame body 2. In this embodiment, the cooperation between the tongue depressor 22 and the pressing strip 13 is directly changed to that one side of the frame body 2 is hinged to the box body 1 through a third hinge shaft, which can also achieve the effect of reducing the number of fastening members 3 and improving the operation convenience.

[0083] Please refer to Figure 4 and Figure 5 As shown, in some embodiments of the present application, a positioning post 23 is provided on the side of the frame body 2 facing the light-transmitting film 4, and a barb structure is provided on the positioning post 23. Since in this embodiment, the light-transmitting film 4 is directly clamped between the frame body 2 and the box body 1, during the installation process, the position of the light-transmitting film 4 is likely to slip. Therefore, a positioning post 23 is provided on the side of the frame body 2 facing the light-transmitting film 4, and a barb structure is provided on the positioning post 23. The light-transmitting film 4 can be positioned by the positioning post 23 with the barb structure to prevent the light-transmitting film 4 from slipping and coming off.

[0084] Please refer to Figure 2 and Figure 9 , in some embodiments of the present application, a convex structure 15 is provided along the periphery of the first opening 11 on the box body 1, and the frame body 2 is arranged on the side of the convex structure 15 away from the first opening 11, so that a stepped structure is formed on the light-transmitting film 4; a sealing structure 5 is provided between the box body 1 and the light-transmitting film 4, and the sealing structure 5 is located on the side of the convex structure 15 away from the first opening 11 and between the box body 1 and the frame body 2.

[0085] In this embodiment, a convex structure 15 is provided around the first opening 11 on the box body 1. The frame body 2 is disposed on the side of the convex structure 15 away from the first opening 11, that is, the frame body 2 can be regarded as being sleeved on the outer wall of the convex structure 15. When a light-transmitting film 4 is installed between the box body 1 and the frame body 2 and the box body 1 and the frame body 2 are pressed against each other, under the action of the convex structure 15, the light-transmitting film 4 forms a stepped structure, thereby tightening the light-transmitting film 4 and making the light transmission of the light-transmitting film 4 more uniform. Especially when the frame body 2 is provided with positioning posts 23, the effect of tightening the light-transmitting film 4 is better.

[0086] To prevent the resin contained in the material box from leaking, a sealing structure 5 can be provided between the box body 1 and the light-transmitting film 4 for sealing. In this embodiment, the sealing structure 5 is disposed on the side of the convex structure 15 away from the first opening 11, which is the position where the mutual acting force among the box body 1, the light-transmitting film 4 and the frame body 2 is the largest, and the sealing performance can be improved. The sealing structure 5 can adopt forms such as a sealing ring and a sealing strip. In the embodiment as shown in Figure 9 , a sealing groove is provided on the box body 1, and the sealing ring is installed in the sealing groove. It can ensure the thickness of the sealing ring without affecting the sufficient contact between the light-transmitting film 4 and the surface of the box body 1, and is convenient for the installation of the sealing ring.

[0087] The light-curing material box in the embodiment of the present application is mainly used in a light-curing forming device. Therefore, the present application also provides a light-curing forming device, which includes the light-curing material box in each of the above embodiments. Currently, the most main light-curing forming device is a light-curing 3D printer, which utilizes the principle that a photosensitive resin undergoes a polymerization reaction under the irradiation of a specific light source. The resin has fluidity in the liquid state. When irradiated by the light source, its specific area will quickly solidify into a solid state, thereby forming a three-dimensional object layer by layer. The light-curing 3D printer can achieve high-precision three-dimensional printing and has a wide range of applications in many fields such as jewelry, dentistry, education, medical treatment, and industrial design. Since the light-curing forming device in this embodiment includes the above light-curing material box, the film-changing operation is very simple, without the need to use professional tools to screw off / install screws, and the light-transmitting film 4 can be replaced separately, which can save accessory costs, packaging costs, and labor costs.

[0088] Please refer to Figure 1 and Figure 10 . In some embodiments of the present application, the light-curing forming device further includes:

[0089] A base, on which the light-curing material box is disposed;

[0090] A light source assembly, the light-emitting direction of the light source assembly is towards the light-transmitting film of the light-curing material box;

[0091] A support member, disposed on one side of the base;

[0092] The forming platform is arranged on the support member;

[0093] Wherein, the side where the pressing tongue of the light-curing cartridge is located is on the same side of the base 200 as the support member, or the side where the third hinge shaft of the light-curing cartridge is located is on the same side of the base 200 as the support member.

[0094] Such as Figure 10 As shown, in the light-curing forming device, the base 200 is the support foundation of the entire device, and the rest of the structures can be installed on the base 200. For example, the light-curing cartridge 100 is installed on the base 200. The light source assembly 300 provides the light source for light-curing for the device, which can be a specific light source such as ultraviolet light or laser. The light-emitting direction of the light source assembly 300 directly faces the light-transmitting film of the light-curing cartridge 100, and the light passes through the light-transmitting film and then irradiates the photosensitive resin in the light-curing cartridge 100, causing it to undergo a curing reaction. The support member 400 is mainly used to support the forming platform 500, which is usually cylindrical and has functions such as lifting and moving to realize the lifting and moving of the forming platform 500. The forming platform 500 is the attachment platform for the light-cured product, and the photosensitive resin cures and forms on it. As the forming process progresses, the forming platform 500 is lifted or moved as needed to ensure that the cured layers can be accumulated layer by layer to form the final formed object.

[0095] As mentioned above, a pressing tongue 22 is provided on one side of the frame body 2, a pressing strip 13 is provided on the edge of the first opening 11 of the box body 1, the pressing tongue 22 is inserted between the pressing strip 13 and the box body 1, and a fastening member 3 is provided on at least the opposite side of the pressing tongue 22 on the frame body 2. In this embodiment, the side where the pressing tongue 22 of the light-curing cartridge 100 is located is on the same side of the base 200 as the support member 400. The side where the pressing tongue 22 of the light-curing cartridge 100 is located is flatter than the side where the fastening member 3 is located, so as to facilitate the positioning and installation of the light-curing cartridge 100. At the same time, the fastening member 3 is located on the opposite side or adjacent side of the side where the support member 400 is located, which is convenient for observing whether the fastening fails and operating on the fastening member 3. Similarly, if one side of the frame body 2 is hinged to the box body 1 through a third hinge shaft, and a fastening member 3 is provided on at least the opposite side of the third hinge shaft on the frame body 2, then the side where the third hinge shaft of the light-curing cartridge 100 is located is on the same side of the base 200 as the support member 400, and the same effect can be achieved.

[0096] Based on the above light-curing cartridge, the present application also provides a box body assembly for a light-curing forming device, and the box body assembly includes:

[0097] The box body 1, and a first opening 11 is provided at the bottom of the box body;

[0098] The pressing strip 13 is arranged on the box body 1 and is located at the edge of the first opening 11;

[0099] The buckling part and / or the buckling component, the buckling part is arranged on the box body and at least on the opposite side of the pressing strip; the buckling component is arranged on the box body and at least on the opposite side of the pressing strip, and the buckling component includes a buckling handle and a buckle. One end of the buckling handle is hinged to the box body through a first hinge shaft, and the other end of the buckling handle is hinged to the buckle through a second hinge shaft.

[0100] The box body 1 is used to store photosensitive resin, which is the basis for light-curing forming. The photosensitive resin will undergo a curing reaction under the irradiation of a specific light source such as ultraviolet light or laser, and thus stack layer by layer to form a solid object. A first opening 11 is provided at the bottom of the box body 1, and the first opening 11 can be encapsulated by a light-transmitting film 4. The pressing strip 13 is arranged on the edge of the first opening 11 of the box body 1, and the pressing strip 13 can be used for the insertion of the pressing tongue 22 on the frame body 2. The buckling part 12 and / or the buckling component 3 are arranged on the box body 1. The buckling part 12 can be used to buckle with the buckling component 3 on the frame body 2, and the buckling component 3 can be used to buckle with the buckling part 12 on the frame body 2. Specifically, the box body 1 can be provided with only the buckling part 12; it can also be provided with only the buckling component 3; it can also be provided with one or more buckling parts 12 and at the same time one or more buckling components 3. In this embodiment, the box body 1 is provided with a pressing strip 13, and the buckling part 12 and / or the buckling component 3 are arranged on at least the opposite side of the pressing strip 13 of the box body 1. Compared with the box body 1 being provided with buckling parts 12 and / or buckling components 3 on all four sides, the time for adjusting the buckling position can be reduced, the number of buckling components 3 can be reduced, and the operation is more convenient. In addition to being arranged on the opposite side of the pressing strip 13, the buckling part 12 can also be arranged on the adjacent side of the pressing strip 13.

[0101] Based on the above light-curing cartridge, the present application also provides a box body assembly for a light-curing forming device. The frame body assembly includes:

[0102] The frame body 2 has a second opening 21;

[0103] The pressing tongue 22 is arranged on one side of the frame body 2;

[0104] The buckling component 3 and / or the buckling part 12, the buckling component 3 is arranged on the frame body 2 and at least on the opposite side of the pressing tongue 22; the buckling component 3 includes a buckling handle 31 and a buckle 32. One end of the buckling handle 31 is hinged to the frame body 2 through a first hinge shaft 33, and the other end of the buckling handle 31 is hinged to the buckle 32 through a second hinge shaft 34; the buckling part 12 is arranged on the frame body 2 and at least on the opposite side of the pressing tongue 22.

[0105] The housing 2 is mainly used to detachably mount the light-transmitting film 4 to the cartridge 1. The housing 2 has a second opening 21. When the housing 2 is mounted on the cartridge 1, the second opening 21 and the first opening 11 at least partially coincide, so that light can enter the cartridge 1 through the light-transmitting film 4. A pressing tongue 22 is provided on one side of the housing 2. The pressing tongue 22 can be inserted into the pressing strip 13 of the cartridge 1. A fastening member 3 is provided on at least the opposite side of the pressing tongue 22 on the housing 2. In this embodiment, the housing 2 is provided with a pressing tongue 22, and a fastening member 3 and / or a fastening portion 12 are provided on at least the opposite side of the pressing tongue 22 on the housing 2. Specifically, the housing 2 can be provided with only the fastening portion 12; it can also be provided with only the fastening member 3; it can also be provided with one or more fastening portions 12 and one or more fastening members 3 at the same time. Compared with the housing 2 being provided with fastening members 3 and / or fastening portions 12 around its perimeter, the time for adjusting the fastening position can be reduced, the number of fastening members 3 can be reduced, and the operation can be made more convenient.

[0106] The fastening member 3 includes a fastening handle 31 and a buckle 32. One end of the fastening handle 31 is hinged to the housing 2 through a first hinge shaft 33, and the other end of the fastening handle 31 is hinged to the buckle 32 through a second hinge shaft 34. With two hinges, the fastening handle 31 can extend to the side of the fastening portion 12 away from the housing 2 and be hinged to the buckle 32 here, so that the fastening end 321 of the buckle 32 can rotate from the side of the fastening portion 12 away from the housing 2 and be fastened to the fastening surface 121 of the fastening portion 12. During the process of the fastening end 321 rotating around the second hinge shaft 34 to fasten the fastening portion 12, a force that presses the cartridge 1 and the housing 2 against each other can be generated, thereby improving the stability of clamping the light-transmitting film 4. Moreover, the fastening can be achieved without relying on the self-elasticity of the material. After repeated disassembly and assembly, the fastening can still be kept tight. This means that the light-curing cartridge of this embodiment can be re-filmed more times and the film can be tightly clamped between the two to achieve sealing, thereby effectively extending the service life of the light-curing cartridge.

[0107] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A light-curing cartridge, characterized in that, The light-curing cartridge includes: a cartridge body, with a first opening provided at the bottom of the cartridge body; a light-transmitting film, detachably provided at the bottom of the cartridge body; a frame body, the frame body having a second opening, at least part of the first opening and the second opening overlapping, and the light-transmitting film being positioned at the bottom of the cartridge body through the frame body; a fastening member, the fastening member being connected to one of the cartridge body and the frame body, the other of the cartridge body and the frame body having a fastening portion, and the fastening member being fastened to the fastening portion to press the frame body against the bottom of the cartridge body and encapsulate the first opening.

2. The photocuring cartridge according to claim 1, characterized in that, The fastening member includes a fastening handle and a buckle, the buckle having a fastening end, the fastening portion being located on the cartridge body, and the fastening portion having a fastening surface facing away from the frame body; One end of the fastening handle is hinged to the frame body through a first hinge shaft, and the other end of the fastening handle extends to the side of the fastening portion facing away from the frame body and is hinged to the buckle through a second hinge shaft, so that the fastening end can rotate and be fastened to the fastening surface.

3. The photocuring cartridge according to claim 2, wherein The fastening surface sequentially has a first contact position and a second contact position along the fastening rotation direction of the fastening end. The first contact position is the position on the fastening surface closest to the second hinge shaft, and the distance between the first contact position and the axis of the second hinge shaft is less than the distance from the fastening end to the axis of the second hinge shaft. The light-curing cartridge includes a limiting structure for restricting the rotation of the fastening end along the fastening rotation direction, and the limiting structure is configured to limit the fastening end at the second contact position.

4. The photocuring cartridge according to claim 3, wherein The fastening rotation direction of the fastening end is the direction for the fastening end to move from the fastening surface closer to the fastening handle. The limiting structure is a blocking member provided on the side of the fastening surface closer to the fastening handle, and the fastening end is located at the second contact position and abuts against the blocking member.

5. The photocuring cartridge according to claim 4, characterized in that The buckle has a pulling portion, the pulling portion is connected to the fastening end, and the second hinge shaft is located between the pulling portion and the fastening end. The cartridge body is provided with a receiving space corresponding to the pulling portion, and the pulling portion is located in the receiving space.

6. The photocuring cartridge according to any one of claims 2-5, characterized in that, The fastening handle is provided with a third opening corresponding to the positions of the fastening portion and the fastening end to expose the fastening portion and the fastening end.

7. The photocuring cartridge according to any one of claims 2-5, characterized in that, A first elastic return mechanism for rotating the fastening handle in a first direction is provided between the frame body and the fastening handle. The first direction is the opposite direction of the fastening rotation direction of the fastening handle; and / or, A second elastic return mechanism for rotating the buckle in a second direction is provided between the fastening handle and the buckle. The second direction is the opposite direction of the fastening rotation direction of the buckle.

8. The photocuring cartridge according to any one of claims 1-5, characterized in that, A pressing tongue is provided on one side of the frame body, and a pressing strip is provided on the edge of the first opening of the cartridge body. The pressing tongue is inserted between the pressing strip and the cartridge body, and the fastening member is provided on at least the opposite side of the pressing tongue on the frame body; or, One side of the frame body is hinged to the cartridge body through a third hinge shaft, and the fastening member is provided on at least the opposite side of the third hinge shaft on the frame body.

9. The photocuring cartridge according to any one of claims 1-5, characterized in that The light-transmitting film is detachably provided on the frame body.

10. The photocuring cartridge according to claim 9, wherein, The light-transmitting film is pressed against the bottom of the cartridge body through the frame body.

11. The photocuring cartridge according to claim 10, wherein, On one side of the frame body facing the light-transmitting film, positioning posts are provided, and barb structures are provided on the positioning posts.

12. The photocuring cartridge according to any one of claims 1-5, characterized in that, On the box body, a convex structure is provided around the first opening, and the frame body is arranged on the side of the convex structure away from the first opening, so that the light-transmitting film forms a stepped structure. A sealing structure is provided between the box body and the light-transmitting film. The sealing structure is located on the side of the convex structure away from the first opening, and the sealing structure is located between the box body and the frame body.

13. A stereolithography apparatus, characterized in that, The light-curing forming device includes the light-curing material box according to any one of claims 1-12.

14. The stereolithography apparatus according to claim 13, wherein The light-curing forming device further includes: A base, on which the light-curing material box is arranged; A light source assembly, the light-emitting direction of the light source assembly facing the light-transmitting film of the light-curing material box; A support member, arranged on one side of the base; A forming platform, arranged on the support member; Wherein, the side where the pressing tongue of the light-curing material box is located is on the same side of the base as the support member, or the side where the third hinge shaft of the light-curing material box is located is on the same side of the base as the support member.

15. A box body component for a stereolithography apparatus, characterized in that, The box body assembly includes: A box body, with a first opening provided at the bottom of the box body; A pressing strip, arranged on the box body and located at the edge of the first opening; A buckling part and / or a buckling member. The buckling part is arranged on the box body and at least on the opposite side of the pressing strip; the buckling member is arranged on the box body and at least on the opposite side of the pressing strip. The buckling member includes a buckling handle and a buckle. One end of the buckling handle is hinged to the box body through a first hinge shaft, and the other end of the buckling handle is hinged to the buckle through a second hinge shaft.

16. A frame component for a stereolithography apparatus, characterized in that, The frame body assembly includes: A frame body, having a second opening; A pressing tongue, arranged on one side of the frame body; A buckling member and / or a buckling part. The buckling member is arranged on the frame body and at least on the opposite side of the pressing tongue. The buckling member includes a buckling handle and a buckle. One end of the buckling handle is hinged to the frame body through a first hinge shaft, and the other end of the buckling handle is hinged to the buckle through a second hinge shaft; the buckling part is arranged on the frame body and at least on the opposite side of the pressing tongue.

Images