Trough assembly, tray suite and photocuring three-dimensional printer

Abstract

The utility model provides a trough assembly, a tray kit applying the trough assembly and a photocuring three-dimensional printer. The trough assembly comprises a material frame, a first pressing ring, a second pressing ring and a functional film; the material frame is provided with a penetrating cavity arranged in a penetrating mode in the first direction. The first pressing ring is detachably arranged on the outer side of the material frame; the second pressing ring is detachably connected with the first pressing ring; the functional film is fixed by the first pressing ring and the second pressing ring in a matched mode and covers the side, in the first direction, of the penetrating cavity. The tray suite further comprises a light source assembly and a screen assembly. The trough assembly, the screen assembly and the light source assembly are arranged in a stacked mode in the first direction. The photocuring three-dimensional printer further comprises a platform suite and a movable suite. The platform suite is provided with a forming surface, and the forming surface is configured to allow consumables to be formed into a printing piece on the forming surface; the material groove assembly or the material disc suite is used for storing consumables. And the movable suite is in driving connection with the material groove assembly or the material disc suite and is used for driving the material groove assembly or the material disc suite to move relative to the forming surface in the first direction.

Description

Technical Field

[0001] This application relates to the field of stereolithography technology, and more particularly to a feed tray assembly, a feed tray kit using the same, and a photopolymer stereolithography printer. Background Technology

[0002] Most existing stereolithography printers fix the material tray in place and drive the forming platform to move relative to the tray until the printed part is fully formed on the forming platform. With this printing method, the printed part continuously moves with the forming platform, which easily leads to layering or thread-like defects in the printed parts, affecting the quality of the print. Utility Model Content

[0003] To address the problems in the prior art, embodiments of this application provide a material tray assembly with better printing results, a material tray kit using the same, and a photopolymer 3D printer.

[0004] This application provides a material tank assembly, which includes:

[0005] The material frame has a through cavity extending through it in a first direction;

[0006] The first pressure ring is detachably disposed on the outside of the material frame;

[0007] The second pressure ring is detachably connected to the first pressure ring;

[0008] The functional membrane is fixed by the first pressure ring and the second pressure ring, and covers one side of the through cavity along the first direction.

[0009] In one embodiment, the material frame includes a retaining protrusion, the retaining protrusion including a first inclined surface and a top surface, the first inclined surface being used to slide with the first pressure ring, and the top surface being used to abut against the first pressure ring.

[0010] In one embodiment, the first pressure ring has an inclined groove, the inclined groove includes a second inclined surface, the first inclined surface and the second inclined surface have the same inclination direction, and the first inclined surface and the second inclined surface are respectively located on opposite sides of the top surface along the first direction.

[0011] In one embodiment, the material frame is provided with a first sealing groove, which is arranged around the outside of the material frame. The first sealing groove is used to accommodate a first sealing ring, which is sandwiched between the material frame and the first pressure ring.

[0012] In one embodiment, the functional membrane includes a membrane portion and a frame portion, the frame portion being disposed around the membrane portion, the frame portion being clamped and fixed by a first pressure ring and a second pressure ring, the membrane portion cooperating with the material frame to form a material groove, the material groove being used to accommodate consumables.

[0013] In one embodiment, the frame portion has a first through hole, the first pressure ring has a second through hole, the second pressure ring includes a protruding connecting post, the first through hole and the second through hole are correspondingly arranged and connected, and the connecting post passes through the first through hole and the second through hole.

[0014] In one embodiment, the material frame includes a retaining protrusion, the frame portion and the first pressure ring are disposed on one side of the retaining protrusion along the first direction, and the film portion is connected to the frame portion and extends along the first direction to the other side of the retaining protrusion.

[0015] In one embodiment, the first pressure ring includes a first retaining protrusion located on the side of the first pressure ring away from the material frame, and the second pressure ring includes a second retaining protrusion located on the side of the second pressure ring facing the material frame. The first retaining protrusion and the second retaining protrusion are staggered along the first direction to form an interlaced stepped structure for clamping the functional membrane.

[0016] In one embodiment, the material frame further includes a clamping protrusion that protrudes toward the side away from the through cavity, the clamping protrusion being used to fix the material trough assembly.

[0017] This application embodiment also provides a tray kit, which includes:

[0018] Light source components and screen components;

[0019] As described in any of the foregoing embodiments, the material tank assembly, the screen assembly, and the light source assembly are stacked along the first direction.

[0020] In one embodiment, the tray assembly further includes a base assembly and a locking structure, the screen assembly and the light source assembly are disposed on the base assembly, and the tray assembly and the base assembly are detachably connected via the locking structure.

[0021] This application also provides a photopolymerization stereo printer, including:

[0022] The platform kit has a molding surface configured to allow filament to be molded into a print.

[0023] The feed trough assembly or the feed tray kit as described in any of the foregoing embodiments is used to store the consumables;

[0024] A moving kit, driven and connected to the trough assembly or the tray assembly, is used to drive the trough assembly or the tray assembly to move relative to the forming surface along the first direction.

[0025] Furthermore, this application provides a feed trough assembly, a feed tray kit using the same, and a photopolymer 3D printer. The first and second pressure rings of the feed trough assembly cooperate to fix the functional film. The functional film and the feed frame are detachably connected through the detachable engagement of the first pressure ring and the feed frame. The feed trough assembly used in the photopolymer 3D printer is configured with a fixed-motion setup. Driving the feed trough assembly drives the non-forming surface to achieve 3D printing, reducing the generation of layer marks or lead screw marks and improving product yield. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a photopolymerization stereo printer provided in an embodiment of this application.

[0027] Figure 2 This is a partial three-dimensional schematic diagram of a photopolymerization stereo printer provided in an embodiment of this application.

[0028] Figure 3 for Figure 2 A cross-sectional view of the tray assembly of a stereolithography printer along the III-III direction.

[0029] Figure 4 for Figure 3 A magnified view of the corresponding IV region.

[0030] Figure 5 This is a perspective view of a feed trough assembly provided in an embodiment of this application.

[0031] Figure 6 This is a perspective view of a feed trough assembly provided in one embodiment of this application from another angle.

[0032] Figure 7 This is an exploded perspective view of a feed trough assembly provided in an embodiment of this application.

[0033] Figure 8 for Figure 5 A cross-sectional view of the tray assembly along the VIII-VIII direction.

[0034] Figure 9 for Figure 8 A magnified view of the corresponding IX region.

[0035] Figure 10 for Figure 5 A cross-sectional view of the tray assembly along the XX direction.

[0036] Figure 11 for Figure 10 A magnified view of the corresponding XI region.

[0037] Explanation of main component symbols

[0038] 100 UV-curing 3D printer

[0039] Platform Suite 10

[0040] Casing 20

[0041] Mobile Kit 30

[0042] Tray kit 40

[0043] 400 feed trough assembly

[0044] 401 feed trough

[0045] Material frame 42

[0046] Through cavity 421

[0047] Resistance to protrusion 422

[0048] First inclined plane 4221

[0049] Top surface 4222

[0050] First sealing groove 423

[0051] 424 flow guide channel

[0052] Guide surface 4240

[0053] Clamping protrusion 425

[0054] Via 4250

[0055] Functional membrane 43

[0056] Membrane 431

[0057] Frame 432

[0058] First through hole 4320

[0059] First pressure ring 45

[0060] Second through hole 451

[0061] Inclined groove 452

[0062] Second slope 4522

[0063] Pressure ring part 453

[0064] First card holding protrusion 454

[0065] Second pressure ring 46

[0066] Connecting post 461

[0067] Second card holding protrusion 462

[0068] Base component 41

[0069] Mounting slot 411

[0070] Locking structure 44

[0071] Rotating component 441

[0072] Item 442

[0073] Screen component 47

[0074] Light source assembly 48

[0075] Heatsink 49

[0076] Pressing protrusion 491

[0077] Second sealing groove 4910

[0078] First sealing ring 4

[0079] Second sealing ring 5

[0080] First direction Z

[0081] Second direction Y

[0082] Third direction X

[0083] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0084] The following description will be given with reference to the accompanying drawings for a more complete description of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the present application. As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but without excluding the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless explicitly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant technology and in the content of this application, and should not be interpreted as having an idealized or overly formal meaning.

[0085] Typically, most existing stereolithography printers fix the material tray in place and drive the forming platform to move relative to the tray until the printed part is fully formed on the forming platform. With this printing method, the printed part continuously moves with the forming platform, which easily leads to layering or thread marks in the printed parts, affecting the quality of the print.

[0086] Correspondingly, this application provides a feed trough assembly, a feed tray kit using the same, and a photopolymer 3D printer. The feed trough assembly includes a feed frame, a first pressure ring, a second pressure ring, and a functional membrane; the feed frame has a through cavity along a first direction; the first pressure ring is detachably disposed on the outside of the feed frame; the second pressure ring is detachably connected to the first pressure ring; the functional membrane is fixed by the first and second pressure rings and covers one side of the through cavity along the first direction. The feed tray kit further includes a light source assembly and a screen assembly, and the feed trough assembly, the screen assembly, and the light source assembly are stacked along the first direction. The photopolymer 3D printer further includes a platform kit and a moving kit; the platform kit has a forming surface configured for forming a printed part onto consumable material; the feed trough assembly or the feed tray kit stores the consumable material; the moving kit is drivenly connected to the feed trough assembly or the feed tray kit to drive the feed trough assembly or the feed tray kit to move relative to the forming surface along the first direction.

[0087] Furthermore, this application provides a feed trough assembly, a feed tray kit using the same, and a photopolymer 3D printer. The first and second pressure rings of the feed trough assembly cooperate to fix the functional film. The functional film and the feed frame are detachably connected through the detachable engagement of the first pressure ring and the feed frame. The feed trough assembly used in the feed trough assembly and the photopolymer 3D printer is configured with a fixed-motion setup. Driving the feed trough assembly drives the non-forming surface to achieve 3D printing, reducing the generation of layer marks or lead screw marks and improving product yield.

[0088] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments. It should be noted that components depicted in the drawings are not necessarily shown to scale; and identical or similar components will be designated with the same or similar reference numerals or similar technical terms.

[0089] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0090] like Figures 1 to 2 As shown, this embodiment provides a photopolymer 3D printer 100, which includes a platform kit 10, a housing 20, a moving kit 30, and a tray kit 40. The platform kit 10, the moving kit 30, and the tray kit 40 are disposed inside the housing 20. The platform kit 10 can be connected to the housing 20 or the moving kit 30, and the tray kit 40 is connected to the moving kit 30.

[0091] For ease of understanding, this application introduces a first direction Z, a second direction Y, and a third direction X to describe the embodiments of this application. The first direction Z, the second direction Y, and the third direction X can be three non-parallel straight line directions in space; further, the first direction Z, the second direction Y, and the third direction X can be three mutually perpendicular directions in a three-dimensional coordinate system (a three-dimensional Cartesian coordinate system). In subsequent embodiments, the first direction Z is described as the Z-axis direction of the coordinate axis of the three-dimensional coordinate system, the second direction Y is the Y-axis direction of the coordinate axis of the three-dimensional coordinate system, and the third direction X is the X-axis direction of the coordinate axis of the three-dimensional coordinate system.

[0092] In one embodiment, along the first direction Z, one end of the tray assembly 40 is provided with a material slot 401 for accommodating printing consumables. Along the first direction Z, a platform assembly 10 is disposed at one end of the tray assembly 40, and the platform assembly 10 has a forming surface facing the end of the tray assembly 40, the forming surface being configured for the printing consumables to be formed into a printed part thereon. The tray assembly 40 is used to store the consumables, and a moving assembly 30 is used to drive the tray assembly 40 to move relative to the forming surface along the first direction Z.

[0093] Thus, in the photopolymer stereo printer 100 of this application, the position of the platform kit 10 is fixed, and the material tray kit 40 is moved relative to the platform kit 10 to print layer by layer, avoiding the movement of the printed parts with the platform kit 10 during the printing process, and thus avoiding defects such as layer lines in the printed parts.

[0094] It is understandable that the consumables used in the photopolymer 3D printer 100 are usually resins, especially photopolymer resins. The following embodiments will be shown using photopolymer resins as an example of consumables.

[0095] Further integration Figures 3 to 5 As shown, in one embodiment, the tray assembly 40 includes a tray assembly 400, a base assembly 41, a locking structure 44, a screen assembly 47, a light source assembly 48, and a heat sink 49. The screen assembly 47 and the light source assembly 48 are disposed within the base assembly 41, the tray assembly 400 is disposed on one side of the base assembly 41 and exposed, the locking structure 44 is movably connected to the base assembly 41 and detachably connected to the tray assembly 400, and the heat sink 49 is sleeved around the base assembly 41.

[0096] In one embodiment, the base assembly 41 is provided with a mounting groove 411, the screen assembly 47 and the light source assembly 48 are disposed in the mounting groove 411, and the material trough assembly 400 is received in the opening of the mounting groove 411 and covers the mounting groove 411.

[0097] In this embodiment, the light source assembly 48 emits light, which passes through the screen assembly 47 and irradiates a photocurable material such as resin, causing the photocurable material to cure and form various cured layers of the desired pattern. These cured layers accumulate to form a printed part. Both the screen assembly 47 and the light source assembly 48 are located within the mounting groove 411. Along the first direction Z, the screen assembly 47 is positioned on the side of the material tank assembly 400 away from the platform kit 10, and the light source assemblies 48 are spaced apart on the side of the screen assembly 47 away from the material tank assembly 400. The heat sink 49 can be made of a thermally conductive material such as aluminum. The heat sink 49 surrounds the outer periphery of the base assembly 41 and is detachably connected to the base assembly 41. For example, the heat sink 49 and the base assembly 41 are connected by bolts or other parts, achieving a locking mechanism between the heat sink 49 and the base assembly 41 along the first direction Z. The heat sink 49 is thermally coupled to the light source assembly 48 for heat dissipation from the light source assembly 48.

[0098] In this embodiment, the locking structure 44 movably abuts against the end of the feed trough assembly 400 away from the base assembly 41, and the locking structure 44 is configured to press the feed trough assembly 400 against the base assembly 41. Further combined with Figure 2As shown, the locking structure 44 includes a rotating member 441 and a holding member 442. The rotating member 441 is disposed along a first direction Z, and its bottom end is rotatably connected to the base assembly 41. The holding member 442 is connected to the top end of the rotating member 441, and the holding member 442 can rotate with the rotating member 441 until the holding member 442 is partially located above the trough assembly 400, and the holding member 442 abuts against the trough assembly 400 in the first direction Z, thereby pressing the trough assembly 400 against the base assembly 41.

[0099] In one embodiment, the feed tank assembly 400 includes a feed frame 42, a functional film 43, a first pressure ring 45, and a second pressure ring 46. The first pressure ring 45 and the second pressure ring 46 cooperate to clamp the functional film 43. The feed frame 42 is then detachably connected to the first pressure ring 45 and the second pressure ring 46 in the cooperated state, locking the functional film 43 to the feed frame 42, thereby connecting and cooperating the feed frame 42 and the functional film 43 to form a feed tank 401 capable of containing photocurable resin.

[0100] In one embodiment, the material frame 42 includes a pressing protrusion 425, which protrudes toward the side away from the material groove 401 and is used to fix the material groove assembly 400. Specifically, the pressing protrusion 425 has a through hole 4250, a rotating member 441 is disposed through the through hole 4250 along the first direction Z, and a supporting member 442 is disposed on the side of the pressing protrusion 425 away from the base assembly 41 along the first direction Z. The supporting member 442 rotates to be positioned above the pressing protrusion 425 along the first direction Z, thereby pressing the pressing protrusion 425 and fixing the material groove assembly 400 to the base assembly 41.

[0101] In this embodiment, the material frame 42, the first pressure ring 45, the functional membrane 43, the second pressure ring 46, and the base assembly 41 are fixed relative to each other along the first direction Z by the abutment member 442. Thus, when it is necessary to remove the functional membrane 43, the abutment member 442 can be rotated until it no longer presses against the material frame 42, and then the material frame 42 and the first pressure ring 45 can be removed before removing the functional membrane 43. Compared to a typical threaded connection structure, this improves the efficiency of removing and installing the functional membrane 43.

[0102] Further integration Figures 5 to 7 As shown, the material trough assembly 400 includes a material frame 42, a first pressure ring 45, a second pressure ring 46, and a functional membrane 43; the material frame 42 has a through cavity 421 disposed along the first direction Z; the first pressure ring 45 is detachably disposed on the outside of the material frame 42; the second pressure ring 46 is detachably connected to the first pressure ring 45; the functional membrane 43 is fixed by the first pressure ring 45 and the second pressure ring 46 and covers one side of the through cavity 421 along the first direction Z.

[0103] In one embodiment, the trough assembly 400, when in the assembled state, generally has an open receiving structure, which allows the trough assembly 400 to hold photocurable resin and allows the platform kit 10 to extend into the trough assembly 400 to contact the photocurable resin for photocurable 3D printing.

[0104] In this embodiment, the material frame 42 is configured to extend through the material frame 42 in the first direction Z. Both the first pressure ring 45 and the second pressure ring 46 are configured to surround the periphery of the material frame 42, and simultaneously clamp the edge of the continuously laid functional film 43. The first pressure ring 45 and the second pressure ring 46, in their mating state, are connected to the material frame 42, such that the middle portion of the continuously laid functional film 43 covers the opening of the material frame 42 on the side of the material frame 42 away from the platform assembly 10 in the first direction Z; that is, the material frame 42 and the functional film 43 can cooperate to form a material tank 401 capable of containing photocurable resin.

[0105] Understandably, the functional film 43 can be a flexible, light-transmitting film, such as a release film, to facilitate its storage and installation. In other embodiments, the functional film 43 can also be other films that meet the requirements, which will not be elaborated here.

[0106] Further integration Figure 3 as well as Figures 7 to 11 As shown, in one embodiment, the material frame 42 is detachably connected to one end of the base assembly 41 near the platform kit 10, and a through cavity 421 is provided through the material frame 42 along the first direction Z. The functional membrane 43 is at least partially disposed in the mounting groove 411, and the functional membrane 43 is clamped between the material frame 42 and the base assembly 41. The side surface of the functional membrane 43 facing the platform kit 10 and the inner peripheral wall of the material frame 42 form a material groove 401.

[0107] In this embodiment, both the base assembly 41 and the material frame 42 are generally square in shape. The outer diameter of the material frame 42 is smaller than the inner diameter of the mounting groove 411, so that the material frame 42 can be partially placed inside the mounting groove 411.

[0108] In one embodiment, along the first direction Z, a first pressure ring 45 and a second pressure ring 46 are spaced apart, and a functional membrane 43 is clamped between the first pressure ring 45 and the second pressure ring 46. Furthermore, along the first direction Z, the first pressure ring 45 and the second pressure ring 46 are clamped between the base assembly 41 and the material frame 42.

[0109] In one embodiment, the functional film 43 includes a film portion 431 and a frame portion 432. The frame portion 432 is disposed around the outer peripheral surface of the film portion 431, and the frame portion 432 is integrally formed with the film portion 431 to facilitate direct installation of the functional film 43 through the frame portion 432, thereby improving the installation and removal efficiency of the functional film 43. The film portion 431 of the functional film 43 is used to hold the photocurable resin and allow the curing light to pass through, while the frame portion 432 is used to fix the functional film 43 with the first pressure ring 45 and the second pressure ring 46.

[0110] In this embodiment, the frame portion 432 is clamped between the first pressure ring 45 and the second pressure ring 46. The membrane portion 431 is generally curved, and part of the membrane portion 431 extends into the second pressure ring 46. The bottom of the material frame 42 passes through the first pressure ring 45 and is pressed against the functional membrane 43. The surface of the membrane portion 431 facing the platform kit 10 and the inner peripheral wall of the material frame 42 form a material groove 401.

[0111] In this embodiment, both the first pressure ring 45 and the second pressure ring 46 are annular structures. The outer diameter of the material frame 42 is smaller than the inner diameter of the first pressure ring 45 and the second pressure ring 46, allowing the first pressure ring 45 and the second pressure ring 46 to be partially placed outside the material trough 401. The second pressure ring 46 is placed on the top surface of the base assembly 41, supported by the base assembly 41, and surrounds the opening of the mounting groove 411. The first pressure ring 45 is placed above the second pressure ring 46 along the first direction Z, and the inner diameters of the first pressure ring 45 and the second pressure ring 46 are the same.

[0112] Understandably, the functional film 43 can be a complete and continuous flexible film. During installation, the first pressure ring 45 and the second pressure ring 46 are first disassembled, and the functional film 43 is placed over the first pressure ring 45 and roughly stretched to avoid adversely affecting the propagation of the curing light. Then, the second pressure ring 46 is fastened to the first pressure ring 45, and then the first pressure ring 45 and the second pressure ring 46 are fixed to clamp the functional film 43, thus completing the installation of the functional film 43.

[0113] In one embodiment, the top surface of the second pressure ring 46 is provided with a plurality of protruding connecting posts 461, which are evenly spaced around the opening of the second pressure ring 46. A plurality of first through holes 4320 are provided on the frame portion 432, each corresponding to one of the connecting posts 461, and the first through holes 4320 penetrate the frame portion 432 along a first direction Z. A plurality of second through holes 451 are provided on the first pressure ring 45, each corresponding to one of the connecting posts 461, and the second through holes 451 penetrate the first pressure ring 45 along a first direction Z. The connecting posts 461 pass through their corresponding first through holes 4320 and second through holes 451, thereby limiting the position of the functional membrane 43.

[0114] It is understandable that the first through hole 4320 can be obtained during the film-forming stage of the functional membrane 43 to improve the installation alignment effect of the functional membrane 43 with the first pressure ring 45 and the second pressure ring 46. Alternatively, the first through hole 4320 can also be formed by the functional membrane 43 being penetrated by the connecting post 461 during the installation process. Those skilled in the art will understand that a suitable mating method can be designed based on the actual installation requirements and the material strength of the functional membrane 43 and / or the connecting post 461, which will not be elaborated here.

[0115] In one embodiment, a pressure ring portion 453 protrudes from the bottom end face of the first pressure ring 45. The pressure ring portion 453 surrounds the opening of the first pressure ring 45 and is integrally formed with the first pressure ring 45. The pressure ring portion 453 is located inside the second pressure ring 46 and abuts against the inner circumferential surface of the second pressure ring 46.

[0116] In this embodiment, a first retaining protrusion 454 protrudes from the outer peripheral surface of the pressure ring portion 453, and the first retaining protrusion 454 surrounds the outer peripheral surface of the pressure ring portion 453. A second retaining protrusion 462 protrudes from the inner peripheral surface of the second pressure ring 46, and the second retaining protrusion 462 surrounds the inner peripheral surface of the second pressure ring 46. The first retaining protrusion 454 and the second retaining protrusion 462 are staggered along the first direction Z to form an interlaced stepped structure, and the frame portion 432 is clamped between the first retaining protrusion 454 and the second retaining protrusion 462, further improving the connection strength and stability between the first pressure ring 45, the second pressure ring 46 and the functional membrane 43, ensuring that the functional membrane 43 still has good installation stability when screws or other parts are not used to install the functional membrane 43.

[0117] In one embodiment, the material frame 42 includes a retaining protrusion 422, which includes a first inclined surface 4221 and a top surface 4222. The first inclined surface 4221 is used to slide with the first pressure ring 45, and the top surface 4222 is used to abut against the first pressure ring 45.

[0118] In one embodiment, the first pressure ring 45 has a groove 452, the groove 452 includes a second inclined surface 4522, the first inclined surface 4221 and the second inclined surface 4522 have the same inclination direction, and the first inclined surface 4221 and the second inclined surface 4522 are located on opposite sides of the top surface 4222 along the first direction Z.

[0119] In one embodiment, the frame portion 432 and the first pressure ring 45 are disposed on one side of the abutting protrusion 422 along the first direction Z, and the membrane portion 431 is connected to the frame portion 432 and extends along the first direction Z to the other side of the abutting protrusion 422.

[0120] In this embodiment, a supporting protrusion 422 is provided on the outer peripheral surface of the material frame 42 away from the material trough 401. The inclined surface of the supporting protrusion 422 faces the side where the base assembly 41 is located, rather than the side where the platform kit 10 is located. There can be multiple supporting protrusions 422. The multiple supporting protrusions 422 are located approximately at the lower part of the material frame 42 near the base assembly 41 along the first direction Z, and the multiple supporting protrusions 422 are arranged at intervals around the outer peripheral surface of the material frame 42.

[0121] In this embodiment, the top opening of the first pressure ring 45 is provided with a slanted groove 452. The inclined surface of the slanted groove 452 faces the side where the platform assembly 10 is located, rather than the side where the base assembly 41 is located. There can be multiple slanted grooves 452. Multiple slanted grooves 452 are provided along the first direction Z on the side of the first pressure ring 45 away from the second pressure ring 46, and multiple slanted grooves 452 are spaced apart around the inner circumferential surface of the first pressure ring 45.

[0122] Understandably, the first inclined surface 4221 of the abutment protrusion 422 and the second inclined surface 4522 of the groove 452 have approximately or exactly the same inclination direction, which is used to guide the groove 452 to the abutment protrusion 422. During the installation phase of the material frame 42 and the first pressure ring 45, the abutment protrusion 422 and the inclined groove 452 are correspondingly arranged, driving the material frame 42 and the first pressure ring 45 closer together until the abutment protrusion 422 contacts the inclined groove 452, and the inclined groove 452 guides the abutment protrusion 422; the abutment protrusion 422 presses the first pressure ring 45 in the circumferential direction (the plane direction formed by the second direction Y and the third direction X), the first pressure ring 45 deforms and causes the first pressure ring 45 and the material groove 401 to move relative to each other in the first direction Z, so that the first pressure ring 45 moves in the first direction Z from the side of the abutment protrusion 422 near the base assembly 41 to the side of the abutment protrusion 422 near the platform kit 10; then, the abutment protrusion 422 provides at least a force to push the first pressure ring 45 upward in the first direction Z, and at the same time, the functional membrane 43 provides at least a force to pull the first pressure ring 45 downward in the first direction Z, so that the first pressure ring 45, the functional membrane 43 and the material frame 42 are fixed.

[0123] In one embodiment, a first sealing groove 423 is provided around the outer peripheral surface of the bottom of the material frame 42. The first sealing groove 423 is constructed to be recessed in the material frame 42 and is used to install a first sealing ring 4. The first sealing ring 4 is clamped between the outer peripheral surface of the material frame 42 and the inner peripheral surface of the pressure ring portion 453 to prevent resin leakage in the material groove 401.

[0124] In this embodiment, the first sealing groove 423 is located on the side of the abutment protrusion 422 away from the base assembly 41 along the first direction Z. The first sealing groove 423 is configured to correspond to the first holding protrusion 454 along the second direction Y and / or the third direction X, for clamping the first sealing ring 4.

[0125] In this embodiment, a first sealing groove 423 is disposed around a material frame 42, and an annular first sealing ring 4 is disposed around the first sealing groove 423. Multiple abutment protrusions 422 are spaced apart on the outside of the material frame 42 along the same or similar circumferential trajectory as the first sealing groove 423. The surrounding first sealing ring 4 effectively improves the sealing performance of the material trough assembly 400.

[0126] In one embodiment, a flow guide 424 is provided on the other side of the material frame 42 away from the functional membrane 43 along the first direction Z. The flow guide 424 has an inclined guide surface 4240 for guiding the resin in the material tank 401 to flow out.

[0127] It is understandable that the flow channel 424 can be formed by thinning the material frame 42, or it can be understood that the guiding surface 4240 of the flow channel 424 has a greater inclination than the sidewall of other areas of the material frame 42, in order to guide the light-curing resin through the flow channel 424 at a roughly predetermined angle or trajectory, so as to avoid the light-curing resin from spilling during the pouring process and improve practicality.

[0128] In this embodiment, the guide channel 424 is located at one corner of the material frame 42. In other embodiments, the guide channel 424 may also be located at multiple corners of the material frame 42, or in the middle section of the material frame 42, which will not be elaborated here.

[0129] Understandably, the heat sink 49 is also provided with a corresponding pressing protrusion 491. The pressing protrusion 491 has a stepped structure, which can accommodate the first pressing ring 45 and the second pressing ring 46. In addition, the pressing protrusion 491 has a second sealing groove 4910, which is used to accommodate the second sealing ring 5. The second sealing ring 5 is arranged around the outside of the functional film 43 to further prevent the light-cured resin from leaking outward.

[0130] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A material trough assembly, characterized in that, include: The material frame has a through cavity extending through it in a first direction; The first pressure ring is detachably disposed on the outside of the material frame; The second pressure ring is detachably connected to the first pressure ring; The functional membrane is fixed by the first pressure ring and the second pressure ring, and covers one side of the through cavity along the first direction.

2. The feed trough assembly as described in claim 1, characterized in that, The material frame includes a supporting protrusion, which includes a first inclined surface and a top surface. The first inclined surface is used to slide with the first pressure ring, and the top surface is used to abut against the first pressure ring.

3. The feed trough assembly as described in claim 2, characterized in that, The first pressure ring has an inclined groove, the inclined groove includes a second inclined surface, the first inclined surface and the second inclined surface have the same inclination direction, and the first inclined surface and the second inclined surface are located on opposite sides of the top surface along the first direction.

4. The feed trough assembly as described in claim 2, characterized in that, The material frame has a first sealing groove, which surrounds the outside of the material frame. The first sealing groove is used to accommodate a first sealing ring, which is clamped between the material frame and the first pressure ring.

5. The feed trough assembly as described in claim 1, characterized in that, The functional membrane includes a membrane portion and a frame portion. The frame portion is disposed around the membrane portion and is clamped and fixed by a first pressure ring and a second pressure ring. The membrane portion and the material frame cooperate to form a material trough, which is used to accommodate consumables.

6. The feed trough assembly as described in claim 5, characterized in that, The frame portion has a first through hole, the first pressure ring has a second through hole, the second pressure ring includes a protruding connecting post, the first through hole and the second through hole are correspondingly arranged and connected, and the connecting post passes through the first through hole and the second through hole.

7. The feed trough assembly as described in claim 5, characterized in that, The material frame includes a retaining protrusion, the frame portion and the first pressure ring are disposed on one side of the retaining protrusion along the first direction, and the film portion is connected to the frame portion and extends along the first direction to the other side of the retaining protrusion.

8. The feed trough assembly as described in claim 1, characterized in that, The first pressure ring includes a first retaining protrusion located on the side of the first pressure ring away from the material frame. The second pressure ring includes a second retaining protrusion located on the side of the second pressure ring facing the material frame. The first retaining protrusion and the second retaining protrusion are staggered along the first direction to form an interlaced stepped structure for clamping the functional membrane.

9. The feed trough assembly as claimed in claim 1, characterized in that, The material frame also includes a clamping protrusion, which protrudes toward the side away from the through cavity and is used to fix the material trough assembly.

10. A tray kit, characterized in that, include: Light source components and screen components; as well as The material tank assembly as described in any one of claims 1 to 9, wherein the material tank assembly, the screen assembly, and the light source assembly are stacked along the first direction.

11. The tray kit as described in claim 10, characterized in that, The tray assembly also includes a base assembly and a locking structure. The screen assembly and the light source assembly are disposed on the base assembly, and the tray assembly and the base assembly are detachably connected through the locking structure.

12. A photopolymer 3D printer, characterized in that, include: A platform kit having a molding surface configured to allow filament to be molded thereon into a print; The feed trough assembly as claimed in any one of claims 1 to 9 or the feed tray kit as claimed in any one of claims 10 to 11, wherein the feed trough assembly or the feed tray kit is used to store consumables; A moving kit, driven and connected to the trough assembly or the tray assembly, is used to drive the trough assembly or the tray assembly to move relative to the forming surface along the first direction.

Images