Material storage device and 3D printer

Abstract

The utility model relates to the field of 3D printing, in particular to a material storage device and a 3D printer, the material storage device is used for loading consumables and comprises a material groove, the material groove comprises a first body and a first connecting piece arranged on the first body, and the bottom of the first body is configured to be provided with a release film to form a containing space for loading the consumables; the pressing piece comprises a second body arranged opposite to the first body and a second connecting piece arranged on the second body; wherein the first connecting piece is configured to be detachably connected with the second connecting piece, and when the first connecting piece is connected with the second connecting piece, the first body and the second body are at least partially jointed, so that the release film is tightly pressed between the first body and the second body.

Description

Technical Field

[0001] The present application relates to the field of 3D printing, and in particular to a material storage device and a 3D printer. Background Art

[0002] Stereolithography 3D printers generally use a light source within a specific wavelength range to illuminate the liquid photocurable resin in the storage material, triggering a photochemical reaction, so that the photocurable resin in the area illuminated by the light source is solidified from the liquid state into shape. After the molding platform rises to a higher level, the next layer is cured. The new cured layer firmly adheres to the previous cured layer. After the cycle of layer-by-layer curing is repeated, the object to be molded can be obtained. A release film is provided at the bottom of the storage material to effectively isolate the physical contact between the liquid resin and the printing base, ensuring that the printed object can be easily removed from the base after printing is completed, avoiding damage or deformation caused by adhesion. In stereolithography 3D technology, the release film will generally be damaged if separated from the printed object 10,000 to 20,000 times.

[0003] In the related art, release films are fixed with screws, which is not convenient for assembly and disassembly. Moreover, when in use, liquid resin easily blocks the screw holes, further increasing the difficulty of removing the screws and preventing quick replacement. Utility Model Content

[0004] The embodiments of the present application provide a material storage device and a 3D printer, which can achieve rapid loading and unloading and improve assembly efficiency.

[0005] In a first aspect, an embodiment of the present application provides a storage device for loading consumables, comprising:

[0006] A material trough, comprising a first body and a first connecting member provided on the first body, wherein the bottom of the first body is configured to be installed with a release film to form a receiving space for loading the consumables; and

[0007] A pressing member, comprising a second body arranged relative to the first body and a second connecting member arranged on the second body;

[0008] The first connecting member is configured to be detachably connected to the second connecting member. When the first connecting member is connected to the second connecting member, the first body and the second body are at least partially engaged to press the release film between the first body and the second body.

[0009] In some embodiments, the first connecting member and the second connecting member are selected from any one or more of a threaded connection, a pin connection, a key connection, a snap connection, or a hinge connection.

[0010] In some embodiments, the first connecting member is snap-connected to the second connecting member, the first connecting member has a snap-fitting portion, the snap-fitting portion is rotatably connected to the first body, and the snap-fitting portion is detachably snap-fitted to the second connecting member.

[0011] In some embodiments, the first connecting member further comprises a hook portion;

[0012] The hook portion includes a connecting arm rotatably connected to the first body at one end, and a hook arm bent from the other end of the connecting arm toward the accommodating space, wherein the hook arm is detachably hooked on the top of the first body;

[0013] The buckle portion is rotatably connected to the connecting arm and is disposed close to the hook arm;

[0014] The hook portion hooked on the top of the first body is configured to provide a pulling force to the buckling portion clamped on the second connecting member so that the pressing member is fixed to the bottom of the trough.

[0015] In some embodiments, at least two groups of the first connectors and the second connectors are included, and the at least two groups of the first connectors and the second connectors are symmetrically arranged relative to the first body and the second body, respectively.

[0016] In some embodiments, the first body is provided with a positioning post on the side facing the second body, and the release film is provided with a positioning hole matching the positioning post; and / or the second body is provided with a positioning post on the side facing the first body, and the release film is provided with a positioning hole matching the positioning post.

[0017] In some embodiments, the bottom of the first body is provided with an annular fixing groove extending along the circumference of the trough;

[0018] The second body is detachably inserted into the fixing slot;

[0019] The release film includes a main body and a contoured body formed on an edge of the main body, and the contoured body is pressed into the fixing groove by the second body.

[0020] In some embodiments, the pressing member connected to the material trough is further configured to tension the flat-plate release film between the pressing member and the material trough, so that the flat-plate release film is deformed into the release film having the contoured body.

[0021] In some embodiments, an annular sealing groove is provided on the bottom surface of the fixing groove;

[0022] The pressing member further includes an annular sealing protrusion formed on the top of the second body, and the sealing protrusion is detachably inserted into the sealing groove;

[0023] The contoured body includes a sealing ring portion which is pressed tightly into the sealing groove by the sealing protrusion.

[0024] In a second aspect, the 3D printer provided in an embodiment of the present application includes the material storage device provided in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a storage device according to an embodiment of the present application;

[0026] Figure 2 for Figure 1 Exploded diagram;

[0027] Figure 3 for Figure 1 A top view of the storage device shown;

[0028] Figure 4 for Figure 3 AA section view;

[0029] Figure 5 for Figure 4 A magnified view of the local B structure;

[0030] Figure 6 This is a schematic diagram of the release film structure with a contoured body in the storage device of an embodiment of the present application;

[0031] Figure 7 for Figure 6 A cross-sectional view of the release film shown;

[0032] Figure 8 for Figure 7 A magnified view of the local C structure;

[0033] Figure 9 This is a top view of the storage device according to an embodiment of the present application;

[0034] Among them: 1- material trough (101- first body (1011- first through hole, 1012- give way groove, 1013- first outer side, 1013a- first outer side, 1013b- first outer side, 1014- second outer side, 1015- fixing groove, 1016- sealing groove, 1017- first step portion), 102- first connecting member (1021- hook portion (10211- connecting arm, 10212- Hook arm), 1022-fastening portion), x-center line), 2-release film (201-main body, 202-contoured body (2021-sealing ring portion, 2022-third step portion, 2023-positioning hole)), 3-pressing member (301-second body (3011-second through hole, 3012-sealing protrusion, 3013-second step portion, 3014-positioning column), 302-second connecting member), 4-accommodating space. DETAILED DESCRIPTION

[0035] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0036] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0038] Please refer to Figures 1 to 5, the storage device of the embodiment of the present application is used for loading consumables, and the storage device includes a material trough 1, a release film 2 and a pressing member 3. The above-mentioned material trough 1 may include a first body 101 and a first connecting member 102, and the first connecting member 102 is fixed to the first body 101. The bottom of the first body 101 is configured to install the release film 2 to form a accommodating space 4 for loading consumables. The pressing member 3 is detachably connected to the material trough 1. The above-mentioned pressing member 3 may include a second body 301 and a second connecting member 302, the second body 301 is arranged relative to the first body 101, and the second connecting member 302 is fixed to the second body 301. Among them, the first connecting member 102 is configured to be detachably connected to the second connecting member 302. When the first connecting member 102 is connected to the second connecting member 302, the first body 101 and the second body 301 are at least partially engaged to press the release film 2 between the first body 101 and the second body 301.

[0039] Please refer to Figures 1 to 5 , wherein the first body 101 can be hollow, and the first through hole 1011 vertically penetrates the first body 101. The release film 2 is set at the bottom of the first body 101, and the release film 2 covers the bottom opening of the first through hole 1011. The hole wall of the first through hole 1011 serves as the side wall of the accommodating space 4, and part of the surface of the release film 2 serves as the bottom wall of the accommodating space 4. Accordingly, please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 , wherein the second body 301 is hollow, and the second body 301 is provided with a second through hole 3011 that vertically passes through the second body 301. The second through hole 3011 is coaxially arranged with the first through hole 1011, and the second body 301 is detachably plugged into the first body 101 to confine the release film 2 between the first body 101 and the second body 301. In addition, the second connecting member 302 is detachably connected to the first connecting member 102. When the first connecting member 102 is connected to the second connecting member 302, the first body 101 and the second body 301 are at least partially engaged, so that the release film 2 is pressed between the first body 101 and the second body 301, achieving quick installation, easy use, and improved installation efficiency. After separating the first connecting member 102 and the second connecting member 302, the pressing member 3 and the material trough 1 can be separated, facilitating the quick replacement of the release film 2, achieving quick disassembly, easy use, and improved disassembly efficiency.

[0040] In the embodiment of the present application, by fixing the release film 2 in the above-mentioned manner, quick installation and disassembly can be achieved, thereby improving the loading and unloading efficiency. In addition, there is no need to use screws to fix the release film 2, thereby avoiding the problem of difficulty in screw removal caused by liquid resin clogging the screw holes, thereby further improving the disassembly efficiency.

[0041] As an example, please refer to Figures 1 to 5 The first connecting member 102 can be provided on the outer side surface of the first body 101 , and correspondingly, the second connecting member 302 can be provided on the outer side surface of the second body 301 .

[0042] Please refer to Figure 2 The first body 101 may further include a clearance groove 1012. The clearance groove 1012 allows the second connector 302 to be avoided, thereby preventing interference between the first body 101 and the second connector 302 during assembly. This ensures that the first body 101 and the second body 301 can be properly plugged into each other, and makes it easier to connect the first connector 102 and the second connector 302, resulting in more convenient operation.

[0043] The first connecting member 102 and the second connecting member 302 are selected from any one or more of threaded connection, pin connection, key connection, snap connection or hinge connection.

[0044] As an example, the first connecting member 102 is snap-connected to the second connecting member 302 , and the first connecting member 102 has a snap-fit portion, which is rotatably connected to the first body 101 and detachably snap-fitted to the second connecting member 302 .

[0045] Specifically, the first connecting member 102 may include a hook portion 1021 and a buckle portion 1022. Figures 1 to 5 . The hook portion 1021 and the buckle portion 1022 are rotatably connected. The hook portion 1021 includes a connecting arm 10211 and a hook arm 10212. One end of the connecting arm 10211 is rotatably connected to the first body 101, and the other end of the connecting arm 10211 is fixed with the hook arm 10212. The hook arm 10212 is bent from the connecting arm 10211 toward the accommodating space 4, and the hook arm 10212 is detachably hooked on the top end of the first body 101. The buckle portion 1022 is rotatably connected to the connecting arm 10211, and the buckle portion 1022 is arranged close to the hook arm 10212, and the buckle portion 1022 is detachably hooked on the second connecting member 302.

[0046] In this embodiment, please refer to Figures 3 to 5 When the hook portion 1021 is hooked on the top of the first body 101 and the buckling portion 1022 is hooked on the second connecting member 302, the hook portion 1021 hooked on the first body 101 can provide tension for the buckling portion 1022 hooked on the second connecting member 302, thereby applying tension to the clamping member 3, tightening and fixing the release film 2 and the clamping member 3 to the bottom of the material trough 1. The structure is simple. Compared with the material trough 1 and the clamping member 3 fastened by screws, it is not only convenient for loading and unloading, but also has a longer service life.

[0047] As an example, the installation steps of the storage device can be: install the release film 2 to the top of the clamping member 3, and then install the material trough 1 and the clamping member 3 together, and then first hook the snap-fit portion 1022 on the second connecting member 302, and then rotate the hook portion 1021 upward so that the hook arm 10212 of the hook portion 1021 is hooked on the top of the first body 101, and the connecting arm 10211 of the first hook portion is abutted against the outer side surface of the first body 101, thereby tightening the release film 2 and the clamping member 3, so that the clamping member 3 and the material trough 1 cooperate with each other to compress and tension the release film 2, which is easy to use and has a stable structure.

[0048] The above-mentioned material storage device may include at least two groups of first connecting members 102 and second connecting members 302 , and the at least two groups of first connecting members 102 and second connecting members 302 are symmetrically arranged relative to the first body and the second body respectively.

[0049] Specifically, the trough 1 may include a plurality of first connecting members 102, please refer to Figures 1 to 3 The embodiment shown, and Figure 9 In the illustrated embodiment, a plurality of first connecting members 102 are symmetrically arranged on the first body 101. Correspondingly, the pressing member 3 may include a plurality of second connecting members 302, which are symmetrically arranged on the second body 301. The second connecting members 302 are arranged in a one-to-one correspondence with the first connecting members 102, and each second connecting member 302 is detachably connected to the corresponding first connecting member 102.

[0050] As an example, please refer to Figure 3 The embodiment shown, and Figure 9 In the embodiment shown, the first body 101 and the second body 301 can be rectangular frame structures. That is, the first body 101 has a pair of first outer side surfaces 1013 and a pair of second outer side surfaces 1014, wherein the length of the pair of first outer side surfaces 1013 is greater than the length of the pair of second outer side surfaces 1014. Each first outer side surface 1013 is provided with a first connecting member 102, such as Figure 9 Alternatively, a plurality of first connecting members 102 are provided on each first outer side surface 1013, as shown in FIG. Figure 3As shown. A pair of first outer side surfaces 1013 includes two first outer side surfaces 1013, namely a first outer side surface 1013a and a first outer side surface 1013b. Among them, the first connecting member 102 of the first outer side surface 1013a and the first connecting member 102 of the first outer side surface 1013b are arranged in a one-to-one correspondence, and all the first connecting members 102 of the first outer side surface 1013a are arranged axially symmetrically about the center line x of the material trough 1, and correspondingly, all the first connecting members 102 of the first outer side surface 1013b are arranged axially symmetrically about the center line x of the material trough 1. It can be understood that the second connecting member 302 is arranged corresponding to the first connecting member 102, and will not be elaborated here. In this embodiment, the force applied to the first material trough 1 and the pressing member 3 is more stable, thereby more evenly and effectively tensioning the release film 2, thereby improving the stability of the storage device and the sealing between the release film 2 and the material trough 1.

[0051] It should be noted that this application does not limit the specific number of the first connecting members 102 and the second connecting members 302, nor their specific locations on the first body 101 and the second body 301, and they can be set according to actual conditions. In other embodiments, the number of first connecting members 102 set on each first outer side surface 1013 can also be different. In other embodiments, the first connecting member 102 can also be asymmetrically arranged, and the second connecting member 302 can also be asymmetrically arranged, and they can be set according to actual conditions, which will not be described in detail here. In other embodiments, the first connecting member 102 can also be set on the second outer side surface 1014, and they can be set according to actual conditions, which will not be described in detail here.

[0052] Please refer to Figure 4 and Figure 5 The bottom of the first body 101 may be provided with a fixing groove 1015. The fixing groove 1015 is annular and extends circumferentially along the first body 101. The second body 301 is removably inserted into the fixing groove 1015. The release film 2 includes a main body 201 and a contoured body 202. The contoured body 202 is formed at the edge of the main body 201 and is pressed tightly into the fixing groove 1015 by the second body 301. The contoured body 202 matches the structure of the pressing member 3 and the material tank 1, preventing the release film 2 from shifting, improving the sealing between the material tank 1 and the release film 2, and preventing liquid resin from leaking between the material tank 1 and the release film 2. This improves the product yield of the storage device and the user experience.

[0053] Furthermore, the outer side surface of the above-mentioned first body 101 can also be provided with a make way groove 1012 located at the lower part of the first body 101, and the make way groove 1012 is connected to the fixing groove 1015, thereby making way for the second connecting member 302 to avoid interference between the second connecting member 302 and the first body 101 during insertion. It can not only ensure that the first body 101 and the second body 301 can be inserted into place, but also make it easier to clamp the first connecting member 102 and the second connecting member 302, making the operation more convenient.

[0054] The first connecting member 102 and the second connecting member 302 connected together can make the release film 2 be stretched between the first body 101 and the second body 301, thereby further preventing the liquid resin from leaking from between the material tank 1 and the release film 2, improving the product yield of the storage device and the user experience.

[0055] Furthermore, the pressing member 3 connected to the trough 1 can also tighten the flat release film 2 between the pressing member 3 and the trough 1, so that the flat release film 2 is deformed into a release film 2 with a contoured body 202. That is, in the initial state, the release film 2 is Figure 2 As shown in the flat plate structure, after the release film 2 is stretched between the pressing member 3 and the material trough 1, the edge of the release film 2 is deformed under the pressure of the pressing member 3 and the material trough 1, forming a contoured body 202 that matches the pressing member 3 and the material trough 1, as shown in FIG. Figure 5 and Figure 6 As shown, the edge of the release film 2 can fit more fully to the pressing piece 3 and the material trough 1, which not only further improves the sealing effect, but also the release film 2 in the initial state has a flat structure, which is simpler and reduces the manufacturing cost of the release film 2.

[0056] The bottom surface of the fixing groove 1015 may be provided with a sealing groove 1016. The sealing groove 1016 is an annular groove extending along the circumference of the fixing groove 1015. Figure 4 and Figure 5 Correspondingly, the pressing member 3 further includes an annular sealing protrusion 3012, which is detachably inserted into the sealing groove 1016. The contoured body 202 includes a sealing ring portion 2021, which is pressed tightly into the sealing groove 1016 by the sealing protrusion 3012, thereby further improving the sealing effect.

[0057] As an example, please refer to Figures 6 to 8 The sealing protrusion 3012 can be formed at the top of the second body 301 and extend along the edge of the second through hole 3011. Accordingly, the sealing groove 1016 can be opened on the bottom surface of the fixing groove 1015 at the bottom of the first body 101.

[0058] It is understood that in this embodiment, the sealing ring portion 2021 is part of the contoured body 202. Since the trough 1 and the pressing member 3 can jointly extrude and deform the flat-plate release film 2 into a release film 2 having the contoured body 202, the sealing ring portion 2021 is also formed by extrusion. The flat-plate release film 2 initially does not have the sealing ring portion 2021. This not only further improves the sealing effect but also does not increase the manufacturing cost of the release film 2.

[0059] As an example, the release film 2 can be made of a plastic Teflon plastic material. The flat release film 2 can be deformed into a release film 2 having a contoured body 202 under the combined pressure of the trough 1 and the pressing member 3. It is understood that in other embodiments, the release film 2 can also be made of other materials, which will not be detailed here.

[0060] It should be noted that, in other embodiments, the initial state of the release film 2 can be Figure 6 As shown, the release film 2 in the initial state has Figure 6 The contoured body 202 shown does not need to be formed by extrusion and deformation, and can be set according to actual conditions, which will not be described in detail here.

[0061] A first step portion 1017 is formed on the wall of the fixing groove 1015 near the accommodating space 4. Figure 5 Correspondingly, the pressing member 3 further includes a second step portion 3013 formed on the wall of the second through hole 3011 and corresponding to the first step portion 1017. The contoured body 202 further includes a third step portion 2022, which is pressed against the first step portion 1017 by the second step portion 3013, thereby further improving the sealing performance and preventing liquid leakage.

[0062] The first body 101 is provided with a positioning post on the side facing the second body 301, and the release film 2 is provided with a positioning hole that matches the positioning post. Alternatively, the second body 301 is provided with a positioning post 3014 on the side facing the first body 101, and the release film 2 is provided with a positioning hole 2023 that matches the positioning post 3014. In other words, the presence of a positioning post in at least one of the first body 101 and the second body 301 effectively positions the release film 2, preventing it from shifting, and further facilitating the coordination between the material trough 1 and the pressing member 3 to tension the release film 2.

[0063] As an example, please refer to Figure 2The pressing member 3 may further include positioning posts 3014. Positioning holes 2023 corresponding to the positioning posts 3014 are formed on the release film 2. The positioning posts 3014 are inserted into the corresponding positioning holes 2023, thereby effectively positioning the release film 2 and making the assembly of the trough 1 and the pressing member 3 more precise. During installation, the release film 2 can be first placed on the pressing member 3, and the positioning posts 3014 can be inserted into the corresponding positioning holes 2023 to position the release film 2 on the pressing member 3 and prevent the release film 2 from shifting. The trough 1 can then be installed above the release film 2 to achieve precise positioning of the trough 1 and the pressing member 3. The trough 1 and the pressing member 3 can then be fixed. This effectively positions the release film 2 and prevents the release film 2 from shifting, further facilitating the trough 1 and the pressing member 3 to cooperate and tighten the release film 2.

[0064] As an example, the pressing member 3 may include at least two positioning posts 3014, please refer to Figure 2 , positioning is more accurate.

[0065] Specifically, please refer to Figure 2 The top of the second body 301 may be provided with a plurality of positioning posts 3014, and all positioning posts 3014 may be spaced apart along the edge of the second through hole 3011. If an annular sealing protrusion 3012 is also provided on the top of the second body 301, the positioning posts 3014 may be provided on the outside of the sealing protrusion 3012 to prevent the positioning posts 3014 from affecting the sealing effect.

[0066] In other embodiments, the pressing member 3 may also include a positioning column 3014, which will not be described in detail here.

[0067] The 3D printer provided in the embodiments of the present application may include the material storage device provided in any of the above embodiments.

[0068] As an example, the material trough 1 of the material storage device can be fixed to other structures of the 3D printer by screws 5, which will not be described in detail here.

[0069] In the embodiment of the present application, quick installation and disassembly can be achieved, which improves the loading and unloading efficiency. In addition, there is no need to use screws to fix the release film 2, which avoids the problem of difficulty in screw removal caused by liquid resin clogging the screw holes, further improving the disassembly efficiency.

[0070] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above embodiments merely represent preferred embodiments of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A storage device for loading consumables, characterized in that: include: A material trough, comprising a first body and a first connecting member provided on the first body, wherein the bottom of the first body is configured to be installed with a release film to form a receiving space for loading the consumables; and, A pressing member, comprising a second body arranged relative to the first body and a second connecting member arranged on the second body; The first connecting member is configured to be detachably connected to the second connecting member. When the first connecting member is connected to the second connecting member, the first body and the second body are at least partially engaged to press the release film between the first body and the second body.

2. The storage device according to claim 1, characterized in that The first connecting member and the second connecting member are selected from any one or more of threaded connection, pin connection, key connection, snap connection or hinge connection.

3. The storage device according to claim 2, characterized in that: The first connecting member is snap-connected to the second connecting member. The first connecting member has a snap-fitting portion. The snap-fitting portion is rotatably connected to the first body, and the snap-fitting portion is detachably snap-fitted to the second connecting member.

4. The storage device according to claim 3, characterized in that: The first connecting member further has a hook portion; The hook portion includes a connecting arm rotatably connected to the first body at one end, and a hook arm bent from the other end of the connecting arm toward the accommodating space, wherein the hook arm is detachably hooked on the top of the first body; The buckle portion is rotatably connected to the connecting arm and is disposed close to the hook arm; The hook portion hooked on the top of the first body is configured to provide a pulling force to the buckling portion clamped on the second connecting member so that the pressing member is fixed to the bottom of the trough.

5. The storage device according to any one of claims 1 to 4, characterized in that: It comprises at least two groups of the first connecting members and the second connecting members, and the at least two groups of the first connecting members and the second connecting members are symmetrically arranged relative to the first body and the second body respectively.

6. The storage device according to claim 5, characterized in that: The first body is provided with a positioning post on the side facing the second body, and the release film is provided with a positioning hole matching the positioning post; and / or the second body is provided with a positioning post on the side facing the first body, and the release film is provided with a positioning hole matching the positioning post.

7. The storage device according to claim 1, characterized in that: The bottom of the first body is provided with an annular fixing groove extending along the circumference of the material trough; The second body is detachably inserted into the fixing slot; The release film includes a main body and a contoured body formed on an edge of the main body, and the contoured body is pressed into the fixing groove by the second body.

8. The storage device according to claim 7, characterized in that: The pressing member connected to the material trough is further configured to tension the flat-plate-shaped release film between the pressing member and the material trough, so that the flat-plate-shaped release film is deformed into the release film having the contoured body.

9. The storage device according to claim 7, characterized in that: An annular sealing groove is provided on the bottom surface of the fixing groove; The pressing member further includes an annular sealing protrusion formed on the top of the second body, and the sealing protrusion is detachably inserted into the sealing groove; The contoured body includes a sealing ring portion which is pressed tightly into the sealing groove by the sealing protrusion.

10. A 3D printer, characterized in that: The device comprises a storage device according to any one of claims 1 to 9.

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