Support and 3D printing equipment applying same

Abstract

The embodiment of the utility model provides a support and 3D printing equipment applying the same. The support comprises a frame body and a mounting frame, the frame body is used for providing support for the support, the mounting frame is connected to the frame body, the mounting frame is provided with a first assembling cavity, the first assembling cavity is used for containing a transmission part of the 3D printing equipment, the frame body is provided with a first through groove, and the first through groove communicates with the first assembling cavity. The 3D printing equipment comprises a Z-axis driving assembly and the support. The Z-axis driving assembly comprises a driving part, a transmission part and a transmission piece which are in driving connection. At least part of the transmission piece is contained in the first assembling cavity.

Description

Technical Field

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

[0002] 3D printing technology is a rapid prototyping technique that uses digital model files as a foundation and employs adhesive materials such as special waxes, powdered metals, or plastics to create three-dimensional objects by printing layer by layer. Fused deposition modeling (FDP) is one of the main 3D printing technologies. This technique involves melting a hot-melt filament, extruding it from a nozzle, and depositing it onto a build platform or a previously solidified layer of material, ultimately creating the object. In this process, the nozzle used to extrude the molten material and the build platform used to shape it are typically configured for relative motion to achieve the desired printing of a product with a specific shape. To achieve relative motion between the nozzle and the build platform, a drive assembly is typically included in the 3D printing device. This drive assembly can drive the nozzle and / or the build platform in at least one direction. Given the size of the 3D printing device and the precision requirements of 3D printing, a drive assembly with a transmission rod or belt is typically used. While these transmission rods and belts offer high transmission accuracy, they often extend in at least one direction and are exposed excessively, which not only compromises the aesthetics of the product but also increases the likelihood of failure due to external factors. Those skilled in the art need to address these issues. Utility Model Content

[0003] In order to solve the problems in the prior art, the embodiments of the present application provide a bracket and a 3D printing device using the bracket.

[0004] An embodiment of the present application provides a bracket, which is applied to a 3D printing device, and the bracket includes:

[0005] A frame, which is used to provide support for the bracket;

[0006] A mounting frame connected to the frame, wherein the mounting frame is provided with a first assembly cavity, and the first assembly cavity is used to accommodate a transmission component of the 3D printing device;

[0007] Wherein, the frame body is provided with a first through slot, and the first through slot is communicated with the first assembly cavity.

[0008] It can be understood that the bracket provided in the embodiment of the present application has a frame that can provide support. The mounting frame is placed in a suitable position by being connected to the frame. A first assembly cavity is provided in the mounting frame. The first assembly cavity can accommodate the transmission parts of the 3D printing device. The frame further has a first through groove connected to the first assembly cavity, which provides shielding and protection for the transmission parts of the 3D printing device, and facilitates operation, thereby improving the aesthetics of the product and reducing the probability of failure due to external factors.

[0009] In one embodiment, the bracket further includes a cover plate, and the cover plate is detachably disposed in the first through slot.

[0010] In one embodiment, the frame body is provided with a first opening and a second opening spaced apart along a first direction, and the first opening and the second opening are respectively communicated with the first assembly cavity;

[0011] The first through-slot is in communication with the first assembly cavity through the first opening. A projection of the first through-slot along the first direction is larger than a projection of the first opening along the first direction.

[0012] In one embodiment, a first connecting structure is provided on the cover plate, and a second connecting structure is provided on the mounting bracket, and the first connecting structure and the second connecting structure are configured to be detachably matched.

[0013] In one embodiment, the frame includes a connected side wall and a top wall, the side wall is connected to the mounting frame, the top wall is spaced apart from the mounting frame, and the side wall and the top wall are constructed to have the same thickness.

[0014] In one embodiment, the frame and the mounting bracket are arranged side by side along the second direction, and the mounting bracket is protruded from the middle area of the frame along the second direction.

[0015] In one embodiment, the mounting bracket is integrally provided with the frame or is detachably connected to the frame.

[0016] In one embodiment, the mounting frame includes:

[0017] Two first mounting portions, respectively provided on two side walls of the frame;

[0018] a second mounting portion, which is provided on the bottom wall of the frame;

[0019] Wherein, at least one of the two first mounting portions is integrally provided with the corresponding side wall, and / or the second mounting portion is integrally provided with the bottom wall.

[0020] In one embodiment, the frame further includes a matching accommodating portion, which is integrally provided with the frame or detachably connected to the frame, and the matching accommodating portion defines a matching accommodating cavity;

[0021] The first mounting portion defines a first assembly cavity, which is communicated with the matching accommodating cavity;

[0022] The second mounting portion defines a second assembly cavity, which is communicated with the matching accommodating cavity.

[0023] An embodiment of the present application also provides a 3D printing device, which includes a Z-axis drive assembly and a bracket as described in any one of the above embodiments, the Z-axis drive assembly includes a drive part, a transmission part and a transmission member connected by a drive connection; at least a portion of the transmission member is accommodated in the first assembly cavity.

[0024] It can be understood that the 3D printing device provided in the embodiment of the present application sets the transmission part of the Z-axis drive assembly in the first assembly cavity, and meets the installation requirements of the Z-axis drive assembly and the aesthetic requirements of the product by setting the position and structure of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram of the bracket provided in an embodiment of the present application.

[0026] Figure 2 A schematic diagram of a three-dimensional decomposition of the bracket provided in an embodiment of the present application.

[0027] Figure 3 for Figure 2 A locally enlarged schematic diagram corresponding to area III.

[0028] Figure 4 A schematic diagram of the cover plate of the bracket provided in an embodiment of the present application.

[0029] Figure 5 A three-dimensional schematic diagram of the cooperation between the bracket and the Z-axis drive assembly provided in an embodiment of the present application.

[0030] Figure 6 for Figure 5 Schematic cross-sectional view along direction VI-VI.

[0031] Figure 7 A schematic diagram of a 3D printing device provided in an embodiment of the present application.

[0032] Description of main component symbols

[0033] 3D printing equipment 1

[0034] Bracket 10

[0035] Frame 11 Side wall 111 Bottom wall 112 Top wall 113 Matching accommodation portion 114 Matching accommodating cavity 1140 First through groove 116 Second through groove 117 Mounting frame 12 First mounting portion 121 First assembly cavity 1210 First opening 1211 Second opening 1212 Guide structure 1213 Second mounting portion 122 Second assembly cavity 1220 Cover 13 First surface 131 Second surface 132 First Area 1321 Second area 1322 First connecting structure 141 First sub-connector 1411 Second sub-connector 1412 The third sub-connector 1413 Second connecting structure 142Z Shaft drive assembly 15 Driving unit 151 Transmission wheel set 152 Driving wheel 1521 Driven wheel 1522 Tensioner 1523

[0036] Transmission belt 1524

[0037] Transmission parts 153

[0038] X-axis drive assembly 16

[0039] Guide Rail 161

[0040] Sliding structure 162

[0041] Guide shaft 163

[0042] Nozzle 19

[0043] First direction X

[0044] Second direction Y

[0045] The third direction Z

[0046] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0047] The following description will refer to the accompanying drawings to more fully describe the contents of this application. Shown in the accompanying drawings are exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be interpreted as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make this application thorough and complete and to fully convey the scope of this application to those skilled in the art. Similar figure numerals represent identical or similar components. The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit this application. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to also include plural forms. In addition, when used herein, "includes" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components and / or their groups. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. Furthermore, unless explicitly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant art and the content of this application, and will not be interpreted as an idealized or overly formal meaning.

[0048] Generally, 3D printing technology is a rapid prototyping technique that uses digital model files as a foundation and utilizes adhesive materials such as special waxes, powdered metals, or plastics to create three-dimensional objects by printing layer by layer. Fused deposition modeling (FDP) is one of the main 3D printing technologies. This technique involves heating and melting a hot-melt filament, extruding it from a nozzle and depositing it onto a build platform or a previously solidified layer of material, ultimately creating the object. In this process, the nozzle used to extrude the molten material and the build platform used to shape it are typically configured for relative motion to achieve the desired printing of a product with a specific shape. To achieve relative motion between the nozzle and the build platform, a drive assembly is typically included in the 3D printing device. This drive assembly can drive the nozzle and / or the build platform in at least one direction. Given the size of the 3D printing device and the precision requirements of 3D printing, a drive assembly with a transmission rod or belt is typically used. While these transmission rods and belts offer high transmission accuracy, they often need to extend in at least one direction and be exposed excessively. This not only compromises the aesthetics of the product, but also increases the likelihood of failure due to external factors. Those skilled in the art need to address these issues.

[0049] Correspondingly, embodiments of the present application provide a bracket and a 3D printing device using the same. The bracket includes a frame and a mounting bracket. The frame is used to provide support for the bracket. The mounting bracket is connected to the frame. The mounting bracket defines a first assembly cavity, which is used to accommodate a transmission component of the 3D printing device. The 3D printing device includes a Z-axis drive assembly and the bracket. The Z-axis drive assembly includes a drive portion, a transmission portion, and a transmission component connected to the drive portion. At least a portion of the transmission component is accommodated in the first assembly cavity.

[0050] Furthermore, the bracket provided in the embodiment of the present application has a frame capable of providing support. The mounting frame is connected to the frame and is placed in a suitable position. A first assembly cavity is defined within the mounting frame, and the first assembly cavity is capable of accommodating the transmission components of the 3D printing device. The frame further defines a first through-slot connected to the first assembly cavity, providing shielding and protection for the transmission components of the 3D printing device, and facilitating operation, thereby improving the aesthetics of the product and reducing the probability of failure due to external factors. The 3D printing device provided in the embodiment of the present application disposes the transmission components of the Z-axis drive assembly in the first assembly cavity. By setting the position and structure of the bracket, the installation requirements of the Z-axis drive assembly and the aesthetic requirements of the product are met.

[0051] Those skilled in the art will understand that "3D printing" refers to a technology that uses a digital model file as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer.

[0052] The following describes exemplary embodiments with reference to the accompanying drawings. It should be noted that the components depicted in the accompanying drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar technical terms.

[0053] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0054] like Figures 1 to 4 As shown, an embodiment of the present application provides a bracket 10, which is applied to a 3D printing device 1. The bracket 10 includes a frame 11 and a mounting frame 12. The frame 11 is used to provide support for the bracket 10. The mounting frame 12 is connected to the frame 11. The mounting frame 12 defines a first assembly cavity 1210, which is used to accommodate a transmission member 153 of the 3D printing device 1.

[0055] As can be understood, the bracket 10 includes a frame 11 that provides support, and the mounting frame 12 is positioned appropriately by being connected to the frame 11. A first assembly cavity 1210 is defined within the mounting frame 12. The first assembly cavity 1210 can accommodate the transmission member 153 of the 3D printing device 1, providing shielding and protection for the transmission member 153, thereby enhancing the product's aesthetics and reducing the probability of malfunction due to external factors.

[0056] In this embodiment, the transmission member 153 is illustrated as a rod-shaped transmission shaft. In other embodiments, the transmission member 153 may also be a belt-shaped transmission belt, a transmission gear, or other transmission structures. Those skilled in the art will appreciate that the bracket 10 of the present application accommodates the transmission member 153 via the first assembly cavity 1210 and does not limit the specific transmission structure of the transmission member 153.

[0057] For ease of understanding, the first direction X, the second direction Y, and the third direction Z are introduced for description in the embodiments of the present application. The first direction X, the second direction Y, and the third direction Z are three non-parallel directions in the spatial coordinate system. In subsequent embodiments, the first direction X, the second direction Y, and the third direction Z are taken as examples of three mutually perpendicular reference directions in the three-dimensional Cartesian coordinate system. The directions shown in the embodiments of the present application are used to help understand the relative positional relationship of each component, but do not limit their specific directions.

[0058] In one embodiment, the bracket 10 installed in the 3D printing device 1 is generally required to be able to be placed upright so that it can cooperate with other components in at least two directions to realize the driving function. The bracket 10 structure of the present application has an annular frame 11. The frame 11 has good self-supporting properties and a relatively stable center of gravity, which makes it easy to carry and place while also meeting the requirements of cooperating with other components.

[0059] In one embodiment, the frame 11 includes a bottom wall 112, a top wall 113, and two side walls 111. The bottom wall 112, one side wall 111, the top wall 113, and the other side wall 111 are sequentially connected end to end to form a ring structure. The mounting bracket 12 is disposed inside the ring structure and connected to the bottom wall 112 and the two side walls 111.

[0060] In this embodiment, the two side walls 111 are spaced apart along the first direction X, and the bottom wall 112 and the top wall 113 are spaced apart along the third direction Z. The two side walls 111 are arranged in a strip-like shape along the third direction Z, and the bottom wall 112 and the top wall 113 are arranged in a strip-like shape along the first direction X. The width direction of the bottom wall 112, the top wall 113, and the two side walls 111 corresponds to the second direction Y. The projections of the bottom wall 112, the top wall 113, and the two side walls 111 in the second direction Y are rectangular with rounded chamfers (i.e., an annular structure). It will be understood that the annular structure does not refer to a quasi-circular or quasi-elliptical shape, but rather refers to a structure having a continuous and complete boundary and being hollow.

[0061] In one embodiment, the side wall 111 is connected to the mounting frame 12 , the top wall 113 is spaced apart from the mounting frame 12 , and the side wall 111 and the top wall 113 are configured to have the same thickness.

[0062] In this embodiment, the bottom wall 112, top wall 113, and two side walls 111 all have substantially the same thickness, and the bottom wall 112, top wall 113, and two side walls 111 are connected to form a ring-shaped structure with uniform thickness. It can be understood that the bracket 10 is formed by the frame 11 and the mounting frame 12. The mounting frame 12 is used to accommodate the transmission member 153. Therefore, the frame 11 can be constructed to have a relatively thin thickness, so that the bracket 10 can have a relatively light weight and a relatively small volume.

[0063] In one embodiment, the frame body 11 further includes a matching accommodating portion 114 , which is integrally provided with the frame body 11 or detachably connected thereto.

[0064] In this embodiment, the cooperating accommodating portion 114 is arranged on the outside of the annular structure and is connected to the bottom wall 112 and the two side walls 111. The cooperating accommodating portion 114 is located on the outside of the side wall 111 and the bottom wall 112. The cooperating accommodating portion 114 is arranged at the junction of the bottom wall 112 and the side wall 111. The cooperating accommodating portion 114 is used to support the frame 11.

[0065] It can be understood that the number of the mating accommodating portions 114 can be two, and the two mating accommodating portions 114 are respectively located on both sides of the frame 11. The frame 11 is roughly a triangular structure with long arc sides. The right angle of the mating accommodating portion 114 is used to contact the bearing surface, which can improve the stability of the bracket 10 structure.

[0066] In one embodiment, the mounting bracket 12 is integrally provided with the frame 11 or is detachably connected to provide a storage space so that other components in the 3D printing device 1 can be installed in a hidden manner. It is understandable that the frame 11 and the mounting bracket 12 can be integrally formed or detachably connected. The integrally formed frame 11 and the mounting bracket 12 have a good connection effect and will not scatter or deform. They will not be deformed or misaligned during transportation and installation with other components, and are also very easy to place, which greatly reduces the difficulty of installation and greatly improves accuracy. The detachable frame 11 and the mounting bracket 12 can better expose the first assembly cavity 1210, which is convenient for the installation of the transmission member 153.

[0067] In one embodiment, the mounting bracket 12 includes two first mounting portions 121 and a second mounting portion 122. The two first mounting portions 121 are respectively disposed on the two side walls 111 of the frame 11, and the second mounting portion 122 is disposed on the bottom wall 112 of the frame 11. The two first mounting portions 121 are respectively connected to the second mounting portions 122. At least one of the two first mounting portions 121 is integrally disposed with the corresponding side wall 111, and / or the second mounting portion 122 is integrally disposed with the bottom wall 112.

[0068] In other embodiments, the number of the first mounting portion 121 may be only one, and one first mounting portion 121 is disposed on any side wall 111 and connected to the second mounting portion 122 disposed on the bottom wall 112 .

[0069] In this embodiment, the first mounting portion 121 and / or the second mounting portion 122 may have an integral or detachable connection relationship with the corresponding connection structure on the frame 11 .

[0070] Those skilled in the art will appreciate that the locations of the first mounting portion 121 and the second mounting portion 122 relative to the frame 11 can be changed; in addition, the first mounting portion 121 and the second mounting portion 122 are preferably configured to be connected to accommodate the Z-axis drive assembly 15 in the mounting frame 12 .

[0071] In one embodiment, the frame 11 and the mounting bracket 12 are arranged side by side along the second direction Y, and the mounting bracket 12 is protruded from the middle area of the frame 11 along the second direction Y.

[0072] In this embodiment, the side wall 111 and the first mounting portion 121 are arranged side by side along the second direction Y, and the side wall 111 and the first mounting portion 121 are stacked along the first direction X. The width of the first mounting portion 121 along the second direction Y is smaller than the width of the side wall 111 along the second direction Y, so that the first mounting portion 121 can be provided in a convex shape in the middle area of the side wall 111.

[0073] In one embodiment, the frame body 11 defines a first through slot 116 , which is in communication with the first assembly cavity 1210 , for exposing the first assembly cavity 1210 .

[0074] In this embodiment, the first mounting portion 121 is connected to the side wall 111 , and the first through slot 116 is correspondingly defined in the side wall 111 . The first through slot 116 is disposed along the first direction X through the side wall 111 , exposing the first assembly cavity 1210 .

[0075] It can be understood that the first assembly cavity 1210 is used to accommodate the transmission member 153, and the transmission member 153 can cooperate with the transmission structure such as the sleeve (not shown) to realize its transmission function. The transmission member 153 and the transmission structure can be exposed through the first through groove 116 for easy assembly and maintenance.

[0076] In this embodiment, the transmission member 153 is extended in the third direction Z along its length, and the first assembly cavity 1210 is also extended in the third direction Z along its length, thereby maximally exposing the transmission member 153. In this embodiment, the first assembly cavity 1210 is recessed or formed in the side wall 111 along the first direction X, which can reduce the weight of the side wall 111 and further expose the transmission member 153.

[0077] In one embodiment, the first mounting portion 121 defines a first opening 1211 and a second opening 1212 spaced apart along the first direction X. The first opening 1211 and the second opening 1212 are respectively connected to the first assembly cavity 1210. The first through-slot 116 is connected to the first assembly cavity 1210 through the first opening 1211. The projection of the first through-slot 116 along the first direction X is larger than the projection of the first opening 1211 along the second direction Y.

[0078] In this embodiment, the first opening 1211 and the second opening 1212 are both extended in the third direction Z corresponding to their length directions. The first opening 1211 is used to expose the first assembly cavity 1210 toward the side of the corresponding side wall 111, and the second opening 1212 is used to expose the first assembly cavity 1210 away from the side wall 111.

[0079] It can be understood that the projection of the first through groove 116 along the first direction X is larger than the projection of the first opening 1211 along the second direction Y, that is, the area of the first through groove 116 in the projection direction is larger than the area of the first opening 1211 in the projection direction, so that the cover plate 13 arranged at the first through groove 116 can completely cover the first opening 1211, thereby improving the aesthetics.

[0080] In this embodiment, the two second openings 1212 of the two first mounting portions 121 on the two side walls 111 are arranged relative to each other at intervals, and the two ends of the X-axis drive assembly 16 of the 3D printing device 1 can respectively pass through the two second openings 1212 to be connected to the two transmission members 153. The X-axis drive assembly 16 is constructed to be connected to the nozzle 19, and the transmission member 153 drives the nozzle 19 to realize Z-axis movement through the X-axis drive assembly 16.

[0081] In one embodiment, the bracket 10 further includes a cover plate 13 . The cover plate 13 is detachably disposed in the first through slot 116 to shield the first assembly cavity 1210 .

[0082] As can be understood, the cover plate 13 has a shape that generally matches the first through-slot 116. When the cover plate 13 is disposed in the first through-slot 116, the cover plate 13 can cover the first opening 1211, shielding the first assembly cavity 1210 and the transmission member 153 therein. At the same time, the cover plate 13 can also be neatly received in the first through-slot 116, making the combined structure of the cover plate 13 and the frame 11 more aesthetically pleasing. There can be two cover plates 13, each engaging with one of the two first through-slots 116.

[0083] In this embodiment, when the cover plate 13 is disposed in the first through-slot 116, the length direction of the cover plate 13 generally corresponds to the third direction Z. The cover plate 13 includes a first surface 131 and a second surface 132 that are opposite to each other along the first direction X. The first surface 131 corresponds to the outer surface of the cover plate 13. The first surface 131 is generally flat and continuous, and mates with the outer surface of the frame 11, making the combined structure of the cover plate 13 and the frame 11 more aesthetically pleasing. The second surface 132 corresponds to the inner surface of the cover 13, and the second surface 132 is constructed to be set toward the first assembly cavity 1210; the second surface 132 includes a first area 1321 and a second area 1322, and the second area 1322 is arranged on the outside of the first area 1321 (for example, on both sides or around all four sides); the first area 1321 is arranged corresponding to the first opening 1211 and has an arc-shaped concave profiling structure, which is used to match the outer surface of the transmission member 153, and the second area 1322 is arranged corresponding to the part of the surface exposed by the first through groove 116 of the mounting frame 12, and has a roughly flat and continuous surface, which is used to enable the cover 13 to be matched and connected with the frame 11 and the first mounting portion 121.

[0084] In one embodiment, a first connecting structure 141 is provided on the cover plate 13 ; a second connecting structure 142 is provided on the mounting frame 12 , and the first connecting structure 141 and the second connecting structure 142 are configured to be detachably matched.

[0085] In one embodiment, the first connecting structure 141 is connected to the cover plate 13 and extends along the first direction X toward the side where the mounting frame 12 is located; the second connecting structure 142 is formed by the inner wall of the first assembly cavity 1210 surrounding the mounting frame 12 being recessed along the second direction Y; the first connecting structure 141 and the second connecting structure 142 are detachably supported and clamped.

[0086] In this embodiment, a first connection structure 141 is provided on the second surface 132 of the cover plate 13. The first connection structure 141 may include multiple different or non-identical structures, such as a first sub-connector 1411, a second sub-connector 1412, and a third sub-connector 1413. The first sub-connector 1411 and the third sub-connector 1413 are provided at opposite ends of the cover plate 13 along the third direction Z. A plurality of second sub-connectors 1412 are spaced apart between the first sub-connector 1411 and the third sub-connector 1413 along the third direction Z. The first sub-connector 1411 and the third sub-connector 1413 are provided in the first region 1321, and the plurality of second sub-connectors 1412 are provided in the second region 1322.

[0087] In this embodiment, the first sub-connector 1411 includes two elastic arms positioned adjacent to each other and having hooks at their top ends. Both elastic arms are located in the first region 1321, with the hooks on the two elastic arms facing away from each other along the second direction Y. The second sub-connector 1412 includes two elastic arms spaced apart from each other and having arc-shaped bosses at their top ends. The two elastic arms are located in the second region 1322 on either side of the first region 1321, respectively. The hooks on the two elastic arms are facing away from each other along the second direction Y. The third sub-connector 1413 includes a cylindrical boss located in the first region 1321.

[0088] In this embodiment, the second connecting structure 142 can include multiple different or non-identical structures to adapt to different first connecting structures 141. The second connecting structure 142 for connecting with the first sub-connector 1411 and the second sub-connector 1412 can be a groove with an inclined guiding surface. The elastic arm is squeezed by the inner wall of the second connecting structure 142, deforming and generating elastic force to achieve tight contact. At the same time, the hook and / or the boss can be used to enhance the connection strength between the first connecting structure 141 and the second connecting structure 142. The second connecting structure 142 for connecting with the third sub-connector 1413 can be a hole slot for mating with the boss.

[0089] In this embodiment, the second connection structure 142 is formed by the inner wall of the first assembly cavity 1210 of the mounting frame 12 being recessed along the second direction Y. The first connection structure 141 can extend into the first assembly cavity 1210 along the first direction X and abut against the second connection structure 142 along the second direction Y.

[0090] Further integration Figure 5 and Figure 6 As shown, in one embodiment, the mating accommodating portion 114 is provided with a mating accommodating cavity 1140; the first mounting portion 121 is provided with a first assembly cavity 1210, and the first assembly cavity 1210 is communicated with the mating accommodating cavity 1140; the second mounting portion 122 is provided with a second assembly cavity 1220, and the second assembly cavity 1220 is communicated with the mating accommodating cavity 1140.

[0091] In this embodiment, a second through slot 117 is provided on the bracket 10 and extends along the third direction Z, so that the first assembly cavity 1210 is connected with the matching accommodating cavity 1140, so that the transmission member 153 can extend along the third direction Z.

[0092] It can be understood that the first assembly cavity 1210, the second assembly cavity 1220 and the matching accommodating cavity 1140 can cooperate with each other to accommodate the Z-axis driving assembly 15 of the 3D printing device 1, making its appearance more beautiful and providing protection.

[0093] In one embodiment, the Z-axis drive assembly 15 includes a drive unit 151, a transmission wheel assembly 152, and a transmission member 153. The drive unit 151 is configured to output rotational torque. The transmission wheel assembly 152 includes a driving wheel 1521 and a driven wheel 1522. The driving wheel 1521 is in transmission connection with the drive unit 151, and the driving wheel 1521 and the driven wheel 1522 are in transmission connection with each other via a transmission belt 1524. The transmission member 153 is in transmission connection with the driven wheel 1522. The transmission member 153 is configured to be in transmission connection with the X-axis drive assembly 16. Rotation of the transmission member 153 drives the X-axis drive assembly 16 to cause the nozzle 19 to move up and down along the third direction Z. The drive unit 151 is connected to the second mounting portion 122, and its transmission member 153 extends into the second assembly cavity 1220. The transmission wheel assembly 152 is disposed within the second assembly cavity 1220, and the transmission member 153 extends from the mating accommodating cavity 1140 to the first assembly cavity 1210.

[0094] In this embodiment, the Z-axis drive assembly 15 includes two transmission members 153, which are arranged on opposite sides of the drive portion 151 along the first direction X. The transmission wheel assembly 152 includes a driving wheel 1521, two driven wheels 1522, and two tensioning wheels 1523. The two driven wheels 1522 are each connected to a transmission member 153 in transmission connection. One tensioning wheel 1523 is located between the driving wheel 1521 and one of the driven wheels 1522 along the first direction X, and the other tensioning wheel 1523 is located between the driving wheel 1521 and the other of the driven wheels 1522 along the first direction X. The transmission belt 1524 extends from the driving wheel 1521 to one of the tensioning wheels 1523, further to one of the driven wheels 1522, further to the other of the driven wheels 1522, further to the tensioning wheel 1523, and finally to the driving wheel 1521, completing the closed loop. The driving portion 151 drives the driving wheel 1521 to rotate, the driving wheel 1521 drives the transmission belt 1524 to rotate, the transmission belt 1524 drives the two driven wheels 1522 to rotate synchronously, and the two driven wheels 1522 respectively drive the two transmission members 153 to rotate.

[0095] It can be understood that the driving wheel 1521, the driven wheel 1522 and the tensioning wheel 1523 are accommodated in the second assembly cavity 1220, and the transmission member 153 is accommodated in the accommodating cavity and the first assembly cavity 1210, so as to realize the transmission coordination with the driving part 151 and the transmission member 153, and also realize the hiding of the transmission wheel group 152, thereby improving space utilization and making the product more beautiful.

[0096] Further integration Figure 7 As shown, an embodiment of the present application further provides a 3D printing device 1, which includes a Z-axis drive assembly 15 and a bracket 10 as any one of the aforementioned embodiments, the Z-axis drive assembly 15 includes a drive portion 151, a transmission portion and a transmission member 153 connected to the drive portion; at least a portion of the transmission member 153 is accommodated in the first assembly cavity 1210.

[0097] It can be understood that the 3D printing device 1 provided in the embodiment of the present application sets the transmission member 153 of the Z-axis drive assembly 15 in the first assembly cavity 1210, and meets the installation requirements of the Z-axis drive assembly 15 and the aesthetic requirements of the product by setting the bracket 10.

[0098] In one embodiment, the X-axis drive assembly 16 is drivably connected to the nozzle 19 to drive the nozzle 19 to move along the first direction X. The X-axis drive assembly 16 may include a guide rail 161 and a sliding structure 162. The guide rail 161 extends along the first direction X and is disposed between the two first mounting portions 121. A sliding structure 162 is provided at each end of the guide rail 161 spaced apart along the first direction X. The sliding structure 162 slidably engages with the guide structure 1213 on the first mounting portion 121 and can pass through the second opening 1212 to be in transmission connection with the transmission member 153.

[0099] Those skilled in the art will appreciate that the sliding structure 162 can be connected to the transmission member 153 through a sliding ring (not shown), and the sliding ring is sleeved on the outside of the transmission member 153. The sliding ring and the transmission member 153 can be connected through, for example, a thread, so as to drive the guide rail 161 and the nozzle 19 to move along the third direction Z via the sliding structure 162. The specific structure thereof will not be described in detail. A guide structure 1213 is provided on the outside of the first mounting portion 121 away from the first assembly cavity 1210. The guide structure 1213 can be a groove-shaped structure that is recessed along the second direction Y. The guide structure 1213 is used to accommodate the guide shaft 163. The guide structure 1213 and the first assembly cavity 1210 extend in the same direction. The guide structure 1213 and the guide shaft 163 can cooperate with each other to realize the sliding of the sliding structure 162 along the first direction X. The specific structure thereof will not be described in detail.

[0100] The specific embodiments of the present application have been described above with reference to the accompanying drawings. However, those skilled in the art will appreciate that various modifications and substitutions may be made to the specific embodiments of the present application without departing from the spirit and scope of the present application. Such modifications and substitutions are intended to fall within the scope of the present application.

Claims

1. A bracket, which is used in 3D printing equipment, characterized in that: The bracket comprises: A frame, which is used to provide support for the bracket; A mounting frame connected to the frame, wherein the mounting frame is provided with a first assembly cavity, and the first assembly cavity is used to accommodate a transmission component of the 3D printing device; Wherein, the frame body is provided with a first through slot, and the first through slot is communicated with the first assembly cavity.

2. The bracket according to claim 1, wherein The bracket further includes a cover plate, and the cover plate is detachably arranged on the first through slot.

3. The bracket according to claim 2, wherein: The frame body is provided with a first opening and a second opening spaced apart along a first direction, the first opening and the second opening being communicated with the first assembly cavity respectively; The first through-slot is in communication with the first assembly cavity through the first opening. A projection of the first through-slot along the first direction is larger than a projection of the first opening along the first direction.

4. The bracket according to claim 2, wherein: The cover plate is provided with a first connecting structure, and the mounting bracket is provided with a second connecting structure. The first connecting structure and the second connecting structure are configured to be detachably matched.

5. The bracket according to claim 1, wherein: The frame includes a connected side wall and a top wall, the side wall is connected to the mounting bracket, the top wall is spaced apart from the mounting bracket, and the side wall and the top wall are constructed to have the same thickness.

6. The bracket according to claim 1, wherein: The frame and the mounting bracket are arranged side by side along the second direction, and the mounting bracket is protruded from the middle area of the frame along the second direction.

7. The bracket according to claim 1, wherein: The mounting bracket is integrally provided with the frame or is detachably connected to the frame.

8. The bracket according to claim 7, wherein: The mounting frame comprises: Two first mounting portions, respectively provided on two side walls of the frame; a second mounting portion, which is provided on the bottom wall of the frame; Wherein, at least one of the two first mounting portions is integrally provided with the corresponding side wall, and / or the second mounting portion is integrally provided with the bottom wall.

9. The bracket according to claim 8, wherein: The frame body further comprises a matching accommodation portion, which is integrally provided with the frame body or detachably connected thereto, and the matching accommodation portion is provided with a matching accommodation cavity; The first mounting portion defines a first assembly cavity, which is communicated with the matching accommodating cavity; The second mounting portion defines a second assembly cavity, which is communicated with the matching accommodating cavity.

10. A 3D printing device, characterized in that: include: The Z-axis drive assembly includes a drive portion, a transmission portion, and a transmission member connected to the drive portion; The bracket according to any one of claims 1 to 9, wherein at least a portion of the transmission member is accommodated in the first assembly cavity.

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