Trough of photocuring 3D printer and photocuring 3D printer

Abstract

The utility model discloses a trough of a photocuring 3D printer and the photocuring 3D printer. The photocuring 3D printer comprises an upper bottom plate and a base, the upper bottom plate is arranged on the base, and a material groove is located in the upper bottom plate and comprises a material groove frame; the release film assembly is arranged on the side, facing the upper bottom plate, of the trough frame, and the release film assembly comprises a release film frame and a release film installed in the release film frame; the mounting hole is formed in the trough frame; the through hole is formed in the release film frame; and the first connecting piece penetrates through the mounting hole and the through hole and is connected to the upper bottom plate. The mounting hole is formed in the trough frame, the through hole is formed in the release film frame, the first connecting piece penetrates through the mounting hole and the through hole and is connected to the upper bottom plate, and the trough can be stably mounted on the upper bottom plate under the condition that the first connecting piece and a related fixing structure are prevented from occupying too much space of the upper bottom plate outside the release film frame; therefore, the overall area and volume of the trough can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of light-curing 3D printing, in particular to a material tank of a light-curing 3D printer and a light-curing 3D printer. Background Art

[0002] 3D printing technology is a rapid prototyping technology based on digital models and through digital analysis point by point and layer by layer. Among them, light-curing 3D printing technology is one of the most accurate printing technologies. Light-curing 3D printing technology relies on photosensitive resin to build up a complete model layer by layer through special light curing. Among them, the resin box is an important component of the light-curing 3D printer that carries the photosensitive resin material and is an indispensable part of the light-curing 3D printer.

[0003] The existing material box occupies a large size of the upper base plate, so that the 3D printer will occupy too much desktop or floor space, and the size of the storage space of the material box is closely related to the printing size. Therefore, how to reduce the size of the upper base plate occupied by the material box without affecting the size of the storage space of the material box is a technical problem that needs to be solved urgently. For example, in the material box in the figure of patent number CN220146709U, the mounting part of the material trough is arranged outside the edge of the material trough, which causes the 3D printer to occupy too much desktop or floor space. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0005] In view of this, the utility model provides a material trough of a light-curing 3D printer and a light-curing 3D printer, wherein the mounting hole of the material trough of the light-curing 3D printer is arranged on the material trough frame, the through hole is arranged on the release film frame, the first connecting member is passed through the mounting hole and the through hole and connected to the upper base plate, so that the material trough can be stably installed on the upper base plate without the first connecting member and the related fixing structure occupying too much space of the upper base plate outside the release film frame, thereby reducing the overall area and volume of the material trough.

[0006] Specifically, the following technical solutions are included:

[0007] The embodiment of the first aspect of the utility model provides a material trough of a light-curing 3D printer, the light-curing 3D printer comprises an upper bottom plate and a base, the upper bottom plate is arranged on the base, the material trough is located on the upper bottom plate, and the material trough comprises:

[0008] Trough frame;

[0009] A release film assembly is arranged on a side of the material trough frame facing the upper bottom plate, and the release film assembly comprises a release film frame and a release film installed in the release film frame;

[0010] A mounting hole, the mounting hole being arranged on the trough frame;

[0011] A through hole, wherein the through hole is arranged on the release film frame;

[0012] A first connecting member is provided through the mounting hole and the through hole and connected to the upper base plate.

[0013] Optionally, the release film frame and the material trough frame are arranged correspondingly in position, the number of the mounting holes is one or two or more, and the material trough frame encloses a receiving space, and the receiving space is used to receive the photosensitive resin.

[0014] Optionally, the material trough frame includes a frame body and a groove arranged on the frame body, and the groove is located on a side of the frame body away from the accommodating space.

[0015] Optionally, the mounting hole passes through the material trough frame, the through hole passes through the release film frame, the hole shape of the through hole is a circular hole, a part of a circle, a square hole, a part of a square hole, a triangle or an irregular hole, and the through hole is arranged on the edge of the frame or inside the frame of the release film frame; the mounting hole is arranged corresponding to the position of the through hole.

[0016] Optionally, the mounting hole includes an upper mounting hole and a lower mounting hole in sequence along the direction in which the mounting hole passes through the trough frame, the upper mounting hole is in the shape of a complete hole, and the hole shape of the upper mounting hole is a round hole, a square hole, a triangular hole or an irregular hole, the lower mounting hole is in the shape of a complete hole or the lower mounting hole and the through hole form a complete hole shape, and the lower mounting hole is a round hole, a part of a circle, a square hole, a part of a square hole, a triangle or an irregular hole.

[0017] Optionally, the lower mounting hole and the through hole form a complete hole shape; wherein, the through hole is a 1 / n circular hole, and correspondingly the lower mounting hole is a (1-1 / n) circular hole; or the lower mounting hole is a 1 / n circular hole, and correspondingly the through hole is a (1-1 / n) circular hole, wherein n is a natural number greater than 0.

[0018] Optionally, the trough frame further includes a mounting post, wherein the mounting post penetrates the groove along a direction in which the mounting hole penetrates the trough frame, and the mounting hole penetrates the mounting post along a direction in which the mounting hole penetrates the trough frame.

[0019] Optionally, the connecting column is arranged in the middle of the groove, and the connecting column divides the groove into a first groove and a second groove, and the material trough frame is integrally formed.

[0020] Optionally, the frame body includes a first number of frame vertices and the first number of frame edges sequentially connecting the first number of frame vertices, and the thickness of at least part of the frame edge segment of each of the frame edges is positively correlated with the distance from the frame vertex.

[0021] Optionally, the trough frame further includes:

[0022] A support handle is arranged on the frame body, the support handle extends toward a side of the frame body away from the accommodating space, and at least part of the mounting holes are arranged on the support handle.

[0023] Optionally, an arc-shaped baffle is provided under the handle, and the arc-shaped baffle is arranged on the side of the material trough frame away from the accommodating space. The arc-shaped baffle and the frame body are enclosed to define at least a section of the mounting hole, and the arc-shaped baffle and the release film frame are enclosed to define the through hole.

[0024] Optionally, the frame body, the handle and the arc-shaped baffle are integrally formed.

[0025] Optionally, the handle is 1 mm to 3 mm away from an end of the mounting hole away from the frame body.

[0026] Optionally, a positioning foot is provided on a side of the release film frame facing away from the material trough frame, and a positioning groove is provided on the upper bottom plate, and the positioning groove corresponds to the position of the positioning foot.

[0027] Optionally, when there are two mounting holes, the mounting holes are arranged on the short sides of the material trough frame and the release film frame, and the mounting holes are located at the center of the short sides; when there are an even number greater than two, the mounting holes are symmetrically arranged on the long sides and / or short sides of the material trough frame and the release film frame.

[0028] Optionally, the material trough further includes a second connecting piece, and the release film assembly is detachably connected to the material trough frame via the second connecting piece.

[0029] An embodiment of the second aspect of the utility model provides a light-curing 3D printer, including: the material trough of the light-curing 3D printer mentioned above.

[0030] The material trough of the photocurable 3D printer and the photocurable 3D printer provided by the embodiment of the utility model, wherein the material trough of the photocurable 3D printer includes a material trough frame and a release film assembly fixedly connected to the material trough frame, the material trough frame and the release film assembly form a containing space for containing photosensitive resin, the mounting hole is arranged on the material trough frame, the through hole is arranged on the release film frame, the first connecting member is penetrated through the mounting hole and the through hole and connected to the upper base plate, and the material trough can be stably installed on the upper base plate without the first connecting member and the related fixed structure occupying too much space on the upper base plate outside the release film frame, thereby reducing the overall area and volume of the material trough, and further reducing the area of ​​the upper base plate occupied by the material trough. From another perspective, when the printing size of the material trough is certain, that is, when the release film assembly of the material trough occupies a certain area of ​​the upper base plate, since the present application can reduce the area of ​​the upper base plate occupied by the material trough, from this perspective, the present application can expand the storage capacity of the material trough.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 It is a three-dimensional schematic diagram of a material trough according to the first embodiment of the utility model;

[0034] Figure 2a for Figure 1 a side view of the illustrated embodiment;

[0035] Figure 2b for Figure 1 a top view of the illustrated embodiment;

[0036] Figure 3a for Figure 2a A schematic diagram of AA of the illustrated embodiment;

[0037] Figure 3b for Figure 2b A schematic diagram of BB of the illustrated embodiment;

[0038] Figure 4a It is a side view of the installation of the material trough according to the first embodiment of the utility model;

[0039] Figure 4b It is a top view of the installation of the material trough according to the first embodiment of the utility model;

[0040] Figure 5 It is a three-dimensional schematic diagram of a material trough according to a second embodiment of the utility model;

[0041] Figure 6a for Figure 5 a side view of the illustrated embodiment;

[0042] Figure 6b for Figure 5 a top view of the illustrated embodiment;

[0043] Figure 7a for Figure 6a A schematic diagram of the CC of the illustrated embodiment;

[0044] Figure 7b for Figure 6b A schematic diagram of the DD of the illustrated embodiment;

[0045] Figure 8a It is a side view of the installation of the trough according to the second embodiment of the utility model;

[0046] Figure 8b It is a top view of the installation of the material trough according to the second embodiment of the utility model.

[0047] in, Figures 1 to 8b The corresponding relationship between the reference numerals and the component names is as follows:

[0048] 100 material trough, 110 material trough frame, 111 frame body, 112 groove, 113 support hand, 114 mounting column, 115 arc baffle, 120 release film assembly, 121 release film frame, 122 release film, 130 mounting hole, 140 first connecting member, 150 connecting hole, 160 positioning foot, 200 light-curing 3D printer. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] Before further describing the embodiments of the present invention in detail, the directional terms involved in the embodiments of the present invention, such as "upper part", "lower part" and "side part", do not have the meaning of limiting the protection scope of the present invention.

[0051] In order to make the technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0052] Figure 1 It is a three-dimensional schematic diagram of a material trough according to the first embodiment of the utility model; Figure 5 It is a three-dimensional schematic diagram of a material trough according to the second embodiment of the utility model.

[0053] like Figure 1 and Figure 5 As shown, an embodiment of the utility model provides a material trough of a light-curing 3D printer. The light-curing 3D printer 200 includes an upper base plate and a base. The upper base plate is arranged on the base. The material trough 100 is located on the upper base plate. The material trough 100 includes:

[0054] Tank frame 110;

[0055] The release film assembly 120 is disposed on a side of the trough frame 110 facing the upper bottom plate. The release film assembly 120 includes a release film frame 121 and a release film 122 installed in the release film frame 121;

[0056] A mounting hole 130, the mounting hole 130 is provided on the trough frame 110;

[0057] A through hole, which is provided on the release film frame 121;

[0058] The first connecting member 140 is passed through the mounting hole 130 and the through hole and connected to the upper base plate.

[0059] Among them, the material trough 100 of the photocuring 3D printer 200 includes a material trough frame 110 and a release film assembly 120 fixedly connected to the material trough frame 110. The material trough frame 110 and the release film assembly 120 form a accommodating space for accommodating photosensitive resin. The mounting hole 130 is arranged on the material trough frame 110, and the through hole is arranged on the release film frame 121. The first connecting member 140 is penetrated through the mounting hole 130 and the through hole and connected to the upper base plate. The material trough 100 can be stably installed on the upper base plate without the first connecting member 140 and related fixed structures occupying too much space on the upper base plate outside the release film frame 121, thereby reducing the overall area and volume of the material trough 100, and further reducing the area of ​​the upper base plate occupied by the material trough 100. From another perspective, when the size of the trough 100 is constant, that is, when the area of ​​the upper bottom plate occupied by the release film assembly 120 of the trough 100 is constant, since the present application can reduce the area of ​​the upper bottom plate occupied by the trough 100, from this perspective, the present application can expand the storage capacity of the trough 100. At the same time, the trough 100 is fixed to the 3D printer 200 through the mounting hole 130 and the first connecting member 140, which can improve the working stability of the trough 100 and the 3D printer 200, and avoid the shaking of the trough 100 caused by vibration during operation, which affects the flatness of the photosensitive resin inside.

[0060] It should be noted that, for different manufacturers, the area of ​​the upper base plate occupied by the release film assembly 120 is generally only related to the printing size of the machine, because the model is printed on the release film 122, and the size of the release film frame 121 is adapted to the size of the release film 122, and the width of the frame edge of the release film frame 121 is generally related to the support strength required for the release film 122 at this size. Therefore, the size of the release film assembly 120 is relatively fixed. At this time, that is, when the area of ​​the upper base plate occupied by the release film assembly 120 of the material trough 100 is certain, since the present application can reduce the area of ​​the upper base plate occupied by the material trough 100, from this perspective, the present application can expand the storage capacity of the material trough 100.

[0061] Specifically, since only the position of the trough frame 110 is occupied for setting the mounting hole 130, the area occupied by the trough 100 on the light-curing 3D printer 200 can be greatly reduced, that is, when the area of ​​the entire trough 100 is determined, since the mounting hole 130 occupies a smaller area and does not occupy the space inside the trough 100 for accommodating photosensitive resin, the storage capacity in the trough 100 can be increased; when the storage capacity of the trough 100 is fixed, since the mounting hole 130 only occupies the position on the trough frame 110, the overall occupied area of ​​the trough 100 can be reduced, and the area of ​​the upper base plate is matched with the area of ​​the trough 100, so the area occupied by the upper base plate can be reduced, which in turn helps to reduce the floor space or table area of ​​the light-curing 3D printer, can effectively reduce logistics and transportation costs and product packaging costs, improve the economy of the product, and at the same time, can increase the printable area of ​​the trough 100 as much as possible under the same equipment volume and equipment weight, thereby increasing the printing area of ​​the model, improving the user's freedom of size selection, and improving the flexibility of use of the light-curing 3D printer.

[0062] It should be noted that the release film assembly 120 includes a release film frame 121 and a release film 122 installed in the release film frame 121, and the release film 122 serves as the bottom of the material trough 100. In one embodiment, the release film frame 121 may include an upper frame and a lower frame, and the upper frame and the lower frame are separated by a specific distance. The upper frame and the lower frame are connected by pillar support. The release film 122 can pass through the specific distance and is located between the upper frame and the lower frame, and the release film 122 is fixed in the release film frame 121 by fixing parts such as bolts and screws; in another embodiment, a notch is provided on the side wall of the release film frame 121 facing the photosensitive resin, and the outer edge of the release film 122 is arranged in the notch to realize the installation of the release film 122 and the release film frame 121, that is, the release film 122 and the release film frame 121 are detachably connected, which is convenient for replacing the release film 122.

[0063] In a feasible implementation, the release film frame 121 is arranged corresponding to the position of the material trough frame 110, the number of the mounting holes 130 is one or two or more, and the material trough frame 110 encloses a receiving space for receiving the photosensitive resin.

[0064] Among them, the trough frame 110 is used to enclose a containing space and matches the shape of the release film frame 121, so that the trough frame 110 and the release film assembly 120 form a cavity, and finally the photosensitive resin exists stably in the cavity, which is helpful for the subsequent 3D printing operation of the photocuring 3D printer 200.

[0065] Figure 2a for Figure 1 a side view of the illustrated embodiment; Figure 2b for Figure 1 a top view of the illustrated embodiment; Figure 3a for Figure 2a A schematic diagram of AA of the illustrated embodiment; Figure 3b for Figure 2b Schematic diagram of BB of the illustrated embodiment.

[0066] In a possible implementation, Figure 2a , Figure 2b , Figure 3a and Figure 3b As shown, the mounting hole 130 passes through the material trough frame, and the through hole passes through the release film frame 121. The through hole is a circular hole, a part of a circle, a square hole, a part of a square hole, a triangle or an irregular hole. The through hole is arranged at the edge of the frame or inside the frame of the release film frame 111; the mounting hole 130 is arranged corresponding to the position of the through hole.

[0067] Among them, no other connecting parts are additionally provided, and the mounting hole 130 is directly provided on the frame body 111 of the trough frame 110. Such a setting method can avoid the installation and fixation of the trough 100 occupying the overall area of ​​the external trough 100, thereby reducing the area and volume of the overall trough 100. At the same time, under the premise that the area of ​​the trough 100 is fixed, the storage capacity of the trough 100 can also be increased.

[0068] In a feasible embodiment, the mounting hole 130 includes an upper mounting hole and a lower mounting hole in sequence along the direction in which the mounting hole 130 passes through the trough frame. The upper mounting hole is in the shape of a complete hole, and the hole shape of the upper mounting hole is a circular hole, a square hole, a triangular hole or an irregular hole. The lower mounting hole is in the shape of a complete hole or the lower mounting hole and the through hole form a complete hole shape. The lower mounting hole is a circular hole, a part of a circle, a square hole, a part of a square hole, a triangle or an irregular hole.

[0069] Among them, the mounting hole 130 is divided into two parts, the upper mounting hole in the upper part is a complete hole shape. When the through hole is a complete hole shape, that is, a circular hole, a square hole, a triangle or an irregular hole, the upper mounting hole and the lower mounting hole are also a complete hole shape, and the hole shape of the mounting hole 130 is the same as the hole shape of the through hole; when the through hole is a part of a circle, a part of a square hole, a part of a triangle or a part of an irregular hole, the end of the mounting hole 130 close to the release film frame 121, that is, the lower mounting hole, is a part of a circle, a part of a square hole, a part of a triangle or a part of an irregular hole, that is, the lower mounting hole and the through hole can form a complete hole shape, such as a circular hole, a square hole, a triangle or an irregular hole, so as to realize that the first connecting member is passed through the mounting hole 130 and the through hole and fixedly connected to the upper base plate.

[0070] In a feasible implementation, the lower mounting hole and the through hole enclose a complete hole; wherein the through hole is a 1 / n circular hole, and the corresponding lower mounting hole is a (1-1 / n) circular hole; or the lower mounting hole is a 1 / n circular hole, and the corresponding through hole is a (1-1 / n) circular hole, wherein n is a natural number greater than 0. In other words, when the through hole is a partial circular hole, the lower mounting hole and the through hole can enclose a complete circular hole, which is convenient for the first connecting member to pass through, and no other restrictions are made.

[0071] In a feasible embodiment, when there are two mounting holes 130, the mounting holes 130 are arranged on the short sides of the material trough frame 110 and the release film frame 121, and the mounting holes 130 are located at the center of the short sides; when there are an even number of mounting holes 130 greater than two, the mounting holes 130 are symmetrically arranged on the long sides and / or short sides of the material trough frame 110 and the release film frame 121.

[0072] Specifically, two mounting holes 130 are usually provided to meet the installation requirements of the trough 100 on the photocuring 3D printer 200. When there are two mounting holes 130, they are usually provided on the short sides of the trough frame 110 and the release film frame 121, and the mounting hole 130 is located at the center of the short side, which can ensure the stability of the fixing of the trough 100. The mounting holes 130 can also be an even number of four, six, eight or more, and the even number of mounting holes 130 can be symmetrically provided on the long side and / or the short side of the trough frame 110 and the release film frame 121. The trough 100 is installed on the photocuring 3D printer 200 through the even number of mounting holes 130, which can ensure the stability of the force applied by the first connecting member 140 on the mounting holes 130 on the trough 100, that is, ensure the stability of the installation of the trough 100, thereby making the thickness of the photosensitive resin in each part of the trough 100 more balanced. The present embodiment uses two mounting holes 130 , which can reduce the number of first connecting members 140 used, thereby reducing investment costs while ensuring stable connection.

[0073] In a possible implementation, Figure 2a and Figure 4a The material trough frame 110 shown includes a frame body 111 and a groove 112 arranged on the frame body 111, and the groove 112 is located on the side of the frame body 111 away from the accommodating space. The material trough frame 110 also includes a mounting column 114, and the mounting column 114 penetrates the groove 112 along the direction in which the mounting hole 130 penetrates the material trough frame, and the mounting hole 130 penetrates the mounting column 114 along the direction in which the mounting hole 130 penetrates the material trough frame.

[0074] Among them, the frame body 111 is also provided with a groove 112, which is located on the outside of the frame body 111, that is, the side of the frame body 111 away from the accommodating space. Through the setting of the groove 112, on the one hand, it is convenient for the user to put part of the hand into the groove 112 to facilitate the force to take out the material trough 100, and on the other hand, it can save the space of the projection area of ​​the upper bottom plate occupied by the overall projection of the material trough 100. It can be understood that a certain distance must be left between the edge of the material trough 100 and the upper bottom plate so that the edge of the upper bottom plate can smoothly place components such as the light-curing protective cover and the LCD screen, thereby reducing the weight of the material trough 100, that is, reducing the weight of the light-curing 3D printer, which is conducive to the miniaturization and lightweight of the equipment, thereby saving transportation costs and improving the economy of the product.

[0075] It should be noted that the trough frame 110 also includes a mounting column 114, which passes through the groove 112 in the thickness direction of the trough frame 110, and the mounting hole 130 passes through the mounting column 114 along the direction in which the mounting hole 130 passes through the trough frame. On the one hand, the setting of the column 114 passing through the mounting hole has a wrapping effect on the first connecting member 140, thereby preventing the threads on the first connecting member 140 from scratching the staff when the first connecting member 140 is a screw or a bolt.

[0076] In a feasible implementation manner, the connecting column 114 is disposed in the middle of the groove 112 , and the connecting column 114 divides the groove 112 into a first groove and a second groove.

[0077] Among them, by setting the mounting column 114, and the mounting column 114 is located in the middle of the groove 112, the groove 112 is divided into a first groove and a second groove, which can add an attachment position, and it is convenient for the user to move the material trough 100 by clamping his fingers in the first groove and / or the second groove, thereby improving the safety and stability of the user in taking the material trough 100 and preventing the material trough 100 from tilting and causing the photosensitive resin therein to spill out.

[0078] Furthermore, the first connecting member 140 in the mounting hole 130 may not be wrapped by the columnar hole, and the mounting hole 130 is divided into two parts, the upper mounting hole 130 and the lower mounting hole 130, the upper mounting hole 130 is located above the groove 112, and the lower mounting hole 130 is located below the groove 112. The first connecting member 140 passes through the upper mounting hole 130 and the lower mounting hole 130, and passes through the through hole on the release film frame 121. The material trough 100 is fixedly installed on the light-curing 3D printer 200 through the first connecting member 140. At this time, the first connecting member 140 passes through the groove 112, which can also play a role in increasing the attachment position, that is, the first connecting member 140 can be clamped through the fingers, thereby improving the safety and reliability of the staff moving the material trough 100, and preventing the material trough 100 from tilting and causing the photosensitive resin therein to spill out. At this time, the first connecting member 140 can be a light rod column instead of an external thread column to prevent the thread from causing damage to the staff.

[0079] The lower side of the groove 112 refers to a side of the groove 112 close to the release film frame 121 , and the upper side of the groove 112 refers to a side of the groove 112 away from the release film frame 121 .

[0080] In a feasible implementation manner, the trough frame 110 is integrally formed.

[0081] Among them, the frame body 111, the mounting hole 130, the mounting column 114 and the groove 112 can be made of one-piece injection molding. After the mold is made, it can be directly used for production. On the one hand, it can shorten the production time of mass production of the trough frame 110, increase the stability of the trough frame 110, and improve the positioning accuracy of the mounting hole 130. On the other hand, it can also reduce the production steps of the trough 100, thereby reducing the production cost of the trough 100.

[0082] Figure 6a for Figure 5 a side view of the illustrated embodiment; Figure 6b for Figure 5 Top view of the illustrated embodiment.

[0083] In a possible implementation, Figure 6a and Figure 6b As shown, the trough frame 110 also includes:

[0084] The support hand 113 is disposed on the frame body 111 . The support hand 113 extends toward a side of the frame body 111 away from the accommodation space. At least a portion of the mounting hole 130 is disposed on the support hand 113 .

[0085] Among them, when the material trough 100 is larger in size, it will need to accommodate more photosensitive resin, and the resin has a certain gravity. At this time, adding a support handle 113 to the frame body 111 can facilitate the staff to move the material trough 100. At this time, in order to increase the strength of the material trough frame 110, at least part of the mounting holes 130 can be set at the edge of the frame body 111 and the release film frame 121, and another part of the mounting holes 130 is set on the support handle 113 to ensure the wall thickness of the frame body 111 and the release film frame 121, and to ensure the strength of the material trough 100.

[0086] In a feasible embodiment, an arc-shaped baffle 115 is provided under the handle 113, and the arc-shaped baffle 115 is arranged on the side of the material trough frame 110 away from the accommodating space. The arc-shaped baffle 115 and the frame body 111 enclose at least a section of the installation hole 130, and the arc-shaped baffle and the release film frame 121 enclose a through hole.

[0087] Among them, Figure 6a and Figure 6b As shown, only part of the mounting holes are located at the frame body 111 and part of the through holes are located at the edge of the release film frame 121. When the release film frame 121 is installed as a whole to the material trough frame 110, the impact of collision on the sealing of the release film can be reduced; part of the mounting holes are located at the edge of the frame body 111 and part of the through holes are located at the edge of the release film frame 121. At the same time, an arc-shaped baffle 115 is provided under the hand support 113. The arc-shaped baffle 115 and the frame body 111 enclose at least one section of the mounting hole 130. The arc-shaped baffle and the release film frame 121 enclose the through hole. The hand support 113 is a completed mounting hole 130. Such a setting can wrap up the first connecting member 140. On the one hand, it can prevent the external thread of the first connecting member 140 from causing damage to the staff after passing through the mounting hole 130. On the other hand, it can also improve the aesthetics of the material trough 100 and improve the user experience.

[0088] It should be noted that at this time, the frame body 111, the support hand 113 and the arc-shaped baffle 115 are made of an integral body. After the mold is made, they are directly used for production. On the one hand, it can shorten the production time of mass production of the trough frame 110, increase the stability of the trough frame 110, and improve the positioning accuracy of the mounting hole 130. On the other hand, it can also reduce the production steps of the trough 100, thereby reducing the production cost of the trough 100.

[0089] Figure 7a for Figure 6a A schematic diagram of the CC of the illustrated embodiment; Figure 7b for Figure 6b Schematic diagram of the DD of the illustrated embodiment.

[0090] In a possible implementation, Figure 7a and Figure 7bAs shown, the distance between the support handle 113 and the end of the mounting hole 130 away from the frame body 111 is 1 mm to 3 mm.

[0091] Among them, when at least part of the mounting hole 130 is located at the hand support 113, the mounting hole 130 is away from one end of the frame body 111, and is 1mm to 3mm away from the end of the hand support 113 away from the frame body 111. This can reduce the overall occupied area of ​​the material trough 100 as much as possible, expand the storage capacity of the material trough 100 while ensuring the overall area is fixed, and reduce the upper bottom plate area occupied by the material trough 100 when the storage capacity of the material trough 100 is fixed.

[0092] In one possible implementation, Figure 2a , Figure 3b , Figure 6a and Figure 7b As shown, a positioning foot 160 is provided on the side of the release film fixing frame 120 facing away from the material trough frame 110 , and a positioning groove is provided on the upper bottom plate, and the position of the positioning groove corresponds to that of the positioning foot 160 .

[0093] Among them, a positioning foot 160 is provided on the side of the release film fixing frame 120 away from the material trough frame 110, and a positioning groove matching the positioning foot 160 is provided on the upper base plate of the light-curing 3D printer 200. Through the matching of the positioning foot 160 and the positioning groove, the positioning function of the material trough 100 can be achieved, and it is more convenient to install the material trough 100 on the base of the 3D printer 200 through the first connecting member 140, thereby improving the convenience of installation of the material trough 100 and improving the user experience.

[0094] In a feasible implementation, at least two positioning feet 160 are disposed opposite to each other on the release film frame 121 .

[0095] Among them, at least two positioning feet 160 are required to realize the positioning of the material trough 100. Usually, the two positioning feet 160 need to be symmetrically arranged, so that when the material trough 100 is placed alone, the stability of the material trough 100 can also be guaranteed to prevent the photosensitive resin from spilling out of the material trough 100.

[0096] It should be noted that there can be three positioning feet 160, and the line connecting the three positioning feet 160 forms a triangle, which improves the stability of the material trough 100 when placed alone. In this embodiment, there are four positioning feet 160, and the four positioning feet 160 are respectively located at the four corners of the release film fixing frame 120, which can improve the accuracy of positioning the material trough 100 on the 3D printer 200, improve the alignment accuracy of the mounting hole 130, and improve the speed of connection of the first connecting member 140.

[0097] In a feasible implementation, the frame body includes a first number of frame vertices and a first number of frame edges sequentially connecting the first number of frame vertices, and the thickness of at least part of the frame edge segment of each frame edge is positively correlated with the distance from the frame vertex.

[0098] It should be noted that, since the mounting hole 130 and the first connecting member 140 are moved inward in the embodiment of the present application, and since the frame body includes a first number of frame vertices and a first number of frame edges sequentially connecting the first number of frame vertices, the thickness of at least part of the frame edge segments of each frame edge is positively correlated with the distance from the frame vertex, that is, the closer the frame edge segment is to the frame vertex position, the smaller the thickness is. Figure 2b As shown, the size of B1 is larger than that of B2. In this way, the volume of the material tank at the top of the frame can be increased. On the one hand, the capacity of the photosensitive resin in the material tank 100 can be increased, that is, the photosensitive resin can also be stored in the four corners; on the other hand, it can also guide the photosensitive resin inside the material tank 100, facilitating the outflow of the photosensitive resin; and it can also reduce the material used for structural parts while ensuring the structural strength of the material tank frame.

[0099] The first number may be any natural number that is 3 or greater.

[0100] In a feasible implementation manner, the material trough 100 further includes a second connecting member, and the release film assembly 120 is detachably connected to the material trough frame 110 via the second connecting member.

[0101] The release film assembly 120 is detachably connected to the trough frame 110 through the second connecting piece, which makes it easier to replace the release film 122. Specifically, the release film frame 121 and the release film 122 are both provided with connecting holes 150, and the second connecting piece is provided in the connecting hole 150. The release film assembly 120 is integrally detachably connected to the trough frame 110 through the second connecting piece. When the release film assembly 120 is deformed or damaged, the second connecting piece can be unscrewed to replace the release film assembly 120, thereby improving the convenience of replacing the release film assembly 120.

[0102] It should be noted that the material of the release film 122 has a certain elasticity. By tightening and extruding the second connecting piece and cooperating with the convex edge structure on the material trough frame and the release film 122, the sealing between the release film fixing frame 120 and the material trough frame 110 can be achieved without the use of an additional sealing ring, thereby reducing the production cost of the material trough 100.

[0103] It can be understood that the first connecting member 140 is a bolt and / or a screw, and the second connecting member can be a bolt, a screw and / or a stud, or a clip. A groove is provided on the material trough frame 110, and a protrusion is provided on the release film frame 121, or a protrusion is provided on the material trough frame 110 and a groove is provided on the release film frame 121, and the protrusion matches the groove to achieve a fixed connection between the material trough frame 110 and the release film assembly 120.

[0104] Furthermore, there are multiple connecting holes 150, which are evenly arranged on the release film frame 121, the release film 122 and the material trough frame 110, so as to improve the stability of the fixation of the release film assembly 120 and the material trough frame 110, make the circumferential force of the release film assembly 120 and the material trough frame 110 more uniform, and also avoid deformation of the release film 122.

[0105] Figure 4a It is a side view of the installation of the material trough according to the first embodiment of the utility model; Figure 4b It is a top view of the installation of the material trough according to the first embodiment of the utility model; Figure 8a It is a side view of the installation of the trough according to the second embodiment of the utility model; Figure 8b It is a top view of the installation of the material trough according to the second embodiment of the utility model.

[0106] like Figure 4a , Figure 4b , Figure 8a and Figure 8b As shown, the utility model further provides a light-curing 3D printer 200 , including the material trough 100 of the light-curing 3D printer 200 , wherein the material trough 100 is fixed on the base of the light-curing 3D printer 200 through a first connecting member 140 .

[0107] Among them, the material trough 100 is fixed on the base of the light-curing 3D printer 200 by the first connecting member 140, which ensures the stability of the placement of the material trough 100, thereby enabling the smooth printing of the printer. Since the light-curing 3D printer 200 includes the above-mentioned material trough 100 in the embodiment, the light-curing 3D printer 200 in this embodiment includes all the advantages of the above-mentioned material trough 100, which will not be repeated.

[0108] The present application also provides the following embodiments:

[0109] Embodiment 1: A material trough of a light-curing 3D printer, the light-curing 3D printer 200 comprises an upper base plate and a base, the upper base plate is arranged on the base, the material trough 100 is arranged on the upper base plate, and the material trough 100 comprises:

[0110] A trough frame 110;

[0111] A release film assembly 120 is disposed on a side of the trough frame 110 facing the upper bottom plate, and the release film assembly 120 includes a release film frame 121 and a release film 122 installed in the release film frame 121;

[0112] A mounting hole 130, wherein the mounting hole 130 is disposed on the trough frame 110;

[0113] A through hole, wherein the through hole is arranged on the release film frame 121;

[0114] The first connecting member 140 is passed through the mounting hole 130 and the through hole and connected to the upper base plate.

[0115] Example 2: According to the material trough of the light-curing 3D printer described in Example 1, the release film frame 121 is arranged corresponding to the position of the material trough frame 110, the number of the mounting holes 130 is one or two or more, and the material trough frame 110 encloses a receiving space for receiving photosensitive resin.

[0116] Embodiment 3: According to the material trough of the light-curing 3D printer described in Embodiment 2, the material trough frame 110 includes a frame body 111 and a groove 112 arranged on the frame body 111, and the groove 112 is located on a side of the frame body 111 away from the accommodating space.

[0117] Embodiment 4, according to the material trough of the light-curing 3D printer described in Embodiment 3, the mounting hole 130 passes through the material trough frame 110, the through hole passes through the release film frame 121, the hole shape of the through hole is a circular hole, a part of a circle, a square hole, a part of a square hole, a triangle or an irregular hole, and the through hole is arranged on the frame edge or inside the frame of the release film frame 111; the mounting hole 130 is arranged corresponding to the position of the through hole.

[0118] Embodiment 5, according to the material trough of the light-curing 3D printer described in Embodiment 4, the mounting hole 130 includes an upper mounting hole and a lower mounting hole in sequence along the direction in which the mounting hole passes through the material trough frame, the upper mounting hole is in the shape of a complete hole, and the hole shape of the upper mounting hole is a circular hole, a square hole, a triangular hole or an irregular hole, the lower mounting hole is in the shape of a complete hole or the lower mounting hole and the through hole form a complete hole shape, and the lower mounting hole is a circular hole, a part of a circle, a square hole, a part of a square hole, a triangle or an irregular hole.

[0119] Embodiment 6. According to the material trough of the light-curing 3D printer described in Embodiment 5, the lower mounting hole and the through hole enclose a complete hole shape; wherein the through hole is a 1 / n circular hole, and the lower mounting hole is a 1-1 / n circular hole; or the lower mounting hole is a 1 / n circular hole, and the through hole is a 1-1 / n circular hole, wherein n is a natural number greater than 0.

[0120] Example 7: According to the material trough of the light-curing 3D printer described in Example 4, the material trough frame 110 also includes a mounting post 114, and the mounting post 114 penetrates the groove 112 along the direction in which the mounting hole penetrates the material trough frame, and the mounting hole 130 penetrates the mounting post 114 along the direction in which the mounting hole penetrates the material trough frame.

[0121] Example 8: According to the material trough of the light-curing 3D printer described in Example 7, the connecting column 114 is arranged in the middle of the groove 112, and the connecting column 114 divides the groove 112 into a first groove and a second groove, and the material trough frame 110 is made of one piece.

[0122] Example 9. According to the material trough of the light-curing 3D printer described in Example 3, the frame body 111 includes a first number of frame vertices and the first number of frame edges sequentially connecting the first number of frame vertices, and the thickness of at least part of the frame edge segment of each of the frame edges is positively correlated with the distance from the frame vertex.

[0123] Embodiment 10: According to the material tank of the light-curing 3D printer described in Embodiment 5, the material tank frame 110 further includes:

[0124] The support handle 113 is disposed on the frame body 111 . The support handle 113 extends toward a side of the frame body 111 away from the accommodation space. At least a portion of the mounting holes 130 is disposed on the support handle 113 .

[0125] Embodiment 11, according to the material trough of the light-curing 3D printer described in Embodiment 10, an arc-shaped baffle 115 is provided under the support hand 113, and the arc-shaped baffle 115 is arranged on the side of the material trough frame 110 away from the accommodating space, and the arc-shaped baffle 115 and the frame body 111 enclose at least a section of the mounting hole 130, and the arc-shaped baffle and the release film frame 121 enclose the through hole.

[0126] Example 12: According to the material trough of the light-curing 3D printer described in Example 11, the frame body 111, the support hand 113 and the arc-shaped baffle 115 are integrally formed.

[0127] Embodiment 13: According to the material trough of the light-curing 3D printer described in Embodiment 10, the distance between the support hand 113 and the end of the mounting hole 130 away from the frame body 111 is 1 mm to 3 mm.

[0128] Example 14: According to the material trough of the light-curing 3D printer described in Example 1, a positioning foot 160 is provided on the side of the release film frame 121 facing away from the material trough frame 110, and a positioning groove is provided on the upper base plate, and the positioning groove corresponds to the position of the positioning foot 160.

[0129] Example 15. According to the material trough of the light-curing 3D printer described in Example 1, when there are two mounting holes 130, the mounting holes 130 are arranged on the short sides of the material trough frame 110 and the release film frame 121, and the mounting holes 130 are located at the center of the short sides; when the mounting holes 130 are an even number greater than two, the mounting holes 130 are symmetrically arranged on the long sides and / or short sides of the material trough frame 110 and the release film frame 121.

[0130] Embodiment 16: According to the material trough of the light-curing 3D printer according to any one of Embodiments 1 to 15, the material trough 100 further includes a second connecting member, and the release film assembly 120 is detachably connected to the material trough frame 110 via the second connecting member.

[0131] Embodiment 17: A light-curing 3D printer, comprising: a material tank 100 of the light-curing 3D printer as described in any one of Embodiments 1 to 16.

[0132] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0133] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the present invention disclosed herein. The present invention is intended to cover any variation, use, or adaptation of the present invention that follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only.

[0134] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material trough of a light-curing 3D printer, the light-curing 3D printer comprising an upper base plate and a base, the upper base plate being arranged on the base, the material trough being arranged on the upper base plate, characterized in that: The trough comprises: Trough frame; A release film assembly is arranged on a side of the material trough frame facing the upper bottom plate, and the release film assembly comprises a release film frame and a release film installed in the release film frame; A mounting hole, the mounting hole being arranged on the trough frame; A through hole, wherein the through hole is arranged on the release film frame; A first connecting member is provided through the mounting hole and the through hole and connected to the upper base plate.

2. The material tank of the light-curing 3D printer according to claim 1, characterized in that: The release film frame is arranged corresponding to the position of the material trough frame, the number of the mounting holes is one, two or more, and the material trough frame encloses a receiving space, and the receiving space is used to receive the photosensitive resin.

3. The material tank of the light-curing 3D printer according to claim 2, characterized in that: The material trough frame comprises a frame body and a groove arranged on the frame body, wherein the groove is located on a side of the frame body away from the accommodating space.

4. The material tank of the light-curing 3D printer according to claim 3, characterized in that: The mounting hole passes through the material trough frame, the through hole passes through the release film frame, the through hole is a circular hole, a square hole or a triangle, and the through hole is arranged at the edge of the release film frame or inside the frame; the mounting hole is arranged corresponding to the position of the through hole.

5. The material tank of the light-curing 3D printer according to claim 4, characterized in that: The mounting hole includes an upper mounting hole and a lower mounting hole in sequence along the direction in which the mounting hole passes through the material trough frame. The upper mounting hole is in the shape of a complete hole, and the hole shape of the upper mounting hole is a circular hole, a square hole, or a triangular hole. The lower mounting hole is in the shape of a complete hole or the lower mounting hole and the through hole form a complete hole shape, and the lower mounting hole is a circular hole, a square hole, or a triangle.

6. The material tank of the light-curing 3D printer according to claim 5, characterized in that: The lower mounting hole and the through hole form a complete hole shape; wherein, the through hole is a 1 / n circular hole, and the lower mounting hole is a (1-1 / n) circular hole; or the lower mounting hole is a 1 / n circular hole, and the through hole is a (1-1 / n) circular hole, wherein n is a natural number greater than 0.

7. The material tank of the light-curing 3D printer according to claim 4, characterized in that: The trough frame further includes a mounting post, which penetrates the groove along a direction in which the mounting hole penetrates the trough frame, and the mounting hole penetrates the mounting post along a direction in which the mounting hole penetrates the trough frame.

8. The material tank of the light-curing 3D printer according to claim 7, characterized in that: The mounting post is arranged in the middle of the groove, and the mounting post divides the groove into a first groove and a second groove, and the material trough frame is integrally formed.

9. The material tank of the light-curing 3D printer according to claim 3, characterized in that: The frame body includes a first number of frame vertices and a first number of frame edges sequentially connecting the first number of frame vertices, and the thickness of at least a portion of the frame edge segment of each of the frame edges is positively correlated with the distance from the frame vertex.

10. The material tank of the light-curing 3D printer according to claim 5, characterized in that: The trough frame also includes: A support handle is arranged on the frame body, the support handle extends toward a side of the frame body away from the accommodating space, and at least part of the mounting holes are arranged on the support handle.

11. The material tank of the light-curing 3D printer according to claim 10, characterized in that: An arc-shaped baffle is provided below the support handle, and the arc-shaped baffle is arranged on the side of the material trough frame away from the accommodating space. The arc-shaped baffle and the frame body enclose at least a section of the installation hole, and the arc-shaped baffle and the release film frame enclose the through hole.

12. The material tank of the light-curing 3D printer according to claim 11, characterized in that: The frame body, the handle and the arc-shaped baffle are integrally formed.

13. The material tank of the light-curing 3D printer according to claim 10, characterized in that: The distance between the support handle and one end of the mounting hole away from the frame body is 1 mm to 3 mm.

14. The material tank of the light-curing 3D printer according to claim 1, characterized in that: A positioning foot is provided on the side of the release film frame facing away from the material trough frame, and a positioning groove is provided on the upper bottom plate, and the positioning groove corresponds to the position of the positioning foot.

15. The material tank of the light-curing 3D printer according to claim 1, characterized in that: When there are two mounting holes, the mounting holes are arranged on the short sides of the material trough frame and the release film frame, and the mounting holes are located at the center of the short sides; when there are an even number greater than two, the mounting holes are symmetrically arranged on the long sides and / or short sides of the material trough frame and the release film frame.

16. The material tank of a light-curing 3D printer according to any one of claims 1 to 15, characterized in that: The material trough also includes a second connecting piece, and the release film assembly is detachably connected to the material trough frame via the second connecting piece.

17. A light-curing 3D printer, characterized in that: include: A material trough for a light-curing 3D printer as claimed in any one of claims 1 to 16.

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