Three-dimensional printing equipment

Abstract

The utility model provides three-dimensional printing equipment which comprises a printing head module and a printing platform, and the printing head module is used for printing a model on the printing platform; the frame is in sliding connection with the printing head module; the base is connected with the printing platform; wherein the base comprises a shell, a containing cavity is defined by the shell, a limiting hole is formed in the shell, and the frame is connected with the inner wall of the containing cavity through the limiting hole. According to the embodiment of the utility model, the problem that the connection mode of the gantry frame and the fixed base of the three-dimensional printing equipment in the prior art is relatively complicated can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional printing, in particular to a three-dimensional printing device. Background Art

[0002] Fused Deposition Modeling (FDM) 3D printing equipment generally includes a gantry-type printer and a box-type printer. A gantry-type printer generally includes a gantry and a fixed base.

[0003] In the prior art, the gantry and the fixed base are both made of straight strips of metal that are formed by plastic processing. In the process of connecting the gantry and the fixed base, the relative position between the gantry and the fixed base needs to be adjusted many times. For example, the patent number CN 214354181U discloses a dual-nozzle printer. Figure 2 and attached Figure 3 As shown, during assembly, in order to ensure that the bolts can smoothly pass through the connection holes on the gantry and the connection holes on the fixed base, it is usually necessary to constantly adjust the relative position of the gantry so that the connection holes on the gantry and the connection holes on the fixed base are coaxially arranged. Since the gantry is heavy, it is difficult to manually adjust the relative position of the gantry and the fixed base, and the accuracy is low, making the connection operation of the gantry and the fixed base of the 3D printing equipment more complicated. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a three-dimensional printing device to solve the problem that the connection operation between the gantry and the fixed base of the current three-dimensional printing device is relatively complicated.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a three-dimensional printing device, including:

[0006] A print head module and a printing platform, wherein the print head module is used to print a model on the printing platform;

[0007] A frame, the frame being slidably connected to the print head module;

[0008] A base, wherein the base is connected to the printing platform; wherein the base includes a shell, the shell is arranged to form a containing cavity, a limiting hole is provided on the shell, and the frame is connected to the inner wall of the containing cavity through the limiting hole.

[0009] Optionally, the base includes a supporting portion, which is arranged corresponding to the limiting hole, and a protrusion is arranged on the inner wall of the accommodating cavity; the supporting portion is provided with a through groove, the first end of the through groove is connected to the limiting hole, and the second end of the through groove passes through the surface of the supporting portion.

[0010] Optionally, the base further includes a fixing plate, which is fixedly connected to the support portion and covers the second end of the through slot, and the frame passes through the limiting hole and the through slot in sequence and is connected to the fixing plate.

[0011] Optionally, an inner wall of the through groove is provided with an anti-slip structure, and the anti-slip structure includes an anti-slip protrusion and / or an anti-slip groove; the shell of the base is integrally formed, and the shell is made of metal or plastic.

[0012] Optionally, the base includes a cover plate, and the cover plate is connected to the shell to close the accommodating cavity.

[0013] Optionally, the cover plate is snap-connected to the outer shell, or the cover plate is connected to the fixing plate by screws so as to be connected to the outer shell; and supporting feet are provided on the cover plate.

[0014] Optionally, it also includes a power supply, a main control circuit board and a fan, wherein the fan is used to dissipate heat from the power supply and the main control circuit board; the power supply, the main control circuit board and the fan are all installed in the accommodating cavity.

[0015] Optionally, ventilation holes are provided on the shell and / or the cover plate, and the ventilation holes are used to allow air in the accommodating cavity to flow.

[0016] Optionally, it further includes a display screen, which is connected to the housing and located outside the accommodating cavity; the display screen is electrically connected to the main control circuit board.

[0017] Optionally, the display screen includes a display screen body and a first connecting member connected to each other;

[0018] The base is provided with a second connecting piece, and the first connecting piece and the second connecting piece are snap-connected.

[0019] In an embodiment of the utility model, the three-dimensional printing device includes a print head module, a printing platform, a frame and a base, wherein the frame is connected to the base, and the printing platform is arranged on the base; wherein the base includes a shell, the shell is arranged to form a receiving cavity, a limiting hole is arranged on the shell, and the frame is connected to the inner wall of the receiving cavity through the limiting hole. On the one hand, the shell itself does not need to be spliced, which simplifies the structure of the shell. On the other hand, since the limiting hole is arranged on the shell, the convenience and accuracy of determining the connection position between the frame and the shell are improved through the setting of the limiting hole, thereby improving the convenience of connecting the frame and the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 One of the structural schematic diagrams of the three-dimensional printing device provided in the embodiment of the utility model;

[0022] Figure 2 One of the structural schematic diagrams of the housing provided in the embodiment of the utility model;

[0023] Figure 3 The second structural schematic diagram of the housing provided by the embodiment of the utility model;

[0024] Figure 4 for Figure 1 One of the exploded structural diagrams of the provided three-dimensional printing device;

[0025] Figure 5 for Figure 4 The enlarged schematic diagram of point A in the middle;

[0026] Figure 6 for Figure 1 The second schematic diagram of the explosion structure of the 3D printing equipment provided;

[0027] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0028] Figure 8 A second structural schematic diagram of a three-dimensional printing device provided in an embodiment of the utility model;

[0029] Fig. 9 for Figure 8 Schematic diagram of the exploded structure of the provided three-dimensional printing device;

[0030] Fig.10 A schematic diagram of the structure of a display screen provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0031] 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. The following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in 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.

[0032] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The words "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0033] like Figure 1-Figure 7 As shown, the embodiment of the utility model provides a three-dimensional printing device, including:

[0034] A print head module 10 and a printing platform 20, wherein the print head module 10 is used to print a model on the printing platform 20;

[0035] A frame 30, the frame 30 is slidably connected to the print head module 10;

[0036] The base 40 is connected to the printing platform 20; wherein the base 40 includes a shell 401, the shell 401 is arranged to form a receiving cavity, a limiting hole 4011 is provided on the shell 401, and the frame 30 is connected to the inner wall of the receiving cavity through the limiting hole 4011. The sliding connection between the frame 30 and the print head module 10 can be understood as that the print head module 10 can move relative to the frame 30, so as to realize printing of the model at different positions of the printing platform 20.

[0037] In this embodiment, the specific structure of the frame 30 is not limited here. Figure 4 As shown, in some embodiments, the frame 30 may include a first column 301, a second column 302, a beam 303 and a slide rail 304. The first column 301 and the second column 302 are arranged parallel to each other, the two ends of the beam 303 are fixedly connected to the first column 301 and the second column 302 respectively, the two ends of the slide rail 304 are slidably connected to the first column 301 and the second column 302 respectively, and the print head module 10 is slidably connected to the slide rail 304.

[0038] For ease of understanding, in the subsequent embodiments, the frame 30 may include the first column 301, the second column 302, the crossbeam 303 and the slide rail 304. In this embodiment, the sliding connection between the print head module 10 and the frame 30 can be understood as the print head module 10 is slidably connected to the slide rail 304 and can move along the axial direction of the slide rail 304, and the slide rail 304 is slidably connected to the first column 301 and the second column 302 to drive the print head module 10 to move along the axial direction of the first column 301 and the second column 302.

[0039] It should be understood that the specific connection method between the base 40 and the printing platform 20 is not limited here. For example, in some embodiments, the base 40 and the printing platform 20 are detachably connected by components such as screws and nuts. In other embodiments, the base 40 and the printing platform 20 are slidably connected by components such as a slide and a slide rail.

[0040] It should be understood that the base 40 includes a housing 401, and the housing 401 is arranged to form a receiving cavity, and the structure of the receiving cavity is not limited here. For example, in some embodiments, the receiving cavity is a sealed cavity structure. In other embodiments, the cross section of the receiving cavity is arranged in a square shape.

[0041] like Figure 2 and Figure 3 As shown, in some embodiments, the housing 401 is a plate-like structure, and the edges of the plate-like structure arranged along the axial direction are all bent toward the side away from the printing platform 20 to form a flange, thereby surrounding a receiving cavity, and the receiving cavity has an opening. The housing 401 is provided with a limiting hole 4011 corresponding to the frame 30, and the limiting hole 4011 is used to align the frame 30 with the base 40, and the frame 30 at least partially passes through the limiting hole 4011 and is located in the receiving cavity to be connected to the inner wall of the receiving cavity.

[0042] It should be understood that the number of the limiting holes 4011 is not limited here, and the number of the limiting holes 4011 should correspond to the number of the columns. Figure 4 As shown, the frame 30 includes a first column 301, a second column 302, a crossbeam 303 and a slide rail 304, and the limiting hole 4011 includes a first limiting hole and a second limiting hole, the first limiting hole is used to accommodate part of the first column 301, and the second limiting hole is used to accommodate part of the second column 302. In order to make the frame 30 correspond to the limiting hole 4011, the distance between the first column 301 and the second column 302 is equal to the distance between the first limiting hole and the second limiting hole.

[0043] It should be understood that the specific manner in which the frame 30 is connected to the inner wall of the accommodating cavity via the limiting hole 4011 is not limited herein. For example, in some embodiments, the frame 30 is fixedly connected to the inner wall of the accommodating cavity via the limiting hole 4011 by welding or the like. In other embodiments, the frame 30 is detachably connected to the inner wall of the accommodating cavity via the limiting hole 4011 by means of screws, nuts or the like.

[0044] According to the embodiment of the present application, the three-dimensional printing device includes a print head module 10, a printing platform 20, a frame 30 and a base 40, wherein the frame 30 is connected to the base 40, and the printing platform 20 is arranged on the base 40; wherein the base 40 includes a shell 401, the shell 401 is arranged to form a receiving cavity, a limiting hole 4011 is provided on the shell 401, and the frame 30 is connected to the inner wall of the receiving cavity through the limiting hole 4011. In this embodiment, the shell 401 is provided with a limiting hole 4011, and the frame 30 extends into the receiving cavity of the base through the limiting hole 4011 and is connected to the inner wall of the receiving cavity. Due to the existence of the limiting hole 4011, the alignment of the frame 30 and the base 40 is more convenient, thereby simplifying the connection between the frame 30 and the base 40.

[0045] In some embodiments, Figure 3 As shown, the base 40 includes a support portion 402, which is protruding on the inner wall of the accommodating cavity; the support portion 402 is provided with a through groove 4021, the first end of the through groove 4021 is connected to the limiting hole 4011, and the second end of the through groove 4021 passes through the surface of the support portion 402.

[0046] The support portion 402 is protruded on the inner wall of the accommodating cavity, which can be understood as the support portion 402 being connected to the outer shell 401. Specifically, the support portion 402 is connected to the inner wall of the accommodating cavity, and a portion of the support portion 402 protrudes relative to the inner wall of the accommodating cavity toward the side away from the printing platform 20 and is located in the accommodating cavity.

[0047] It should be understood that the specific connection method between the support portion 402 and the inner wall of the accommodating cavity is not limited herein. For example, in some embodiments, the support portion 402 and the housing 401 are integrally formed, and at least a portion of the inner wall of the accommodating cavity is raised to form the support portion 402. In other embodiments, the support portion 402 and the housing 401 are detachably connected by bolts or other components. In other embodiments, the support portion 402 and the housing 401 are fixedly connected by welding or other methods.

[0048] See also Figure 2 and Figure 3 The support portion 402 is provided with a through slot 4021, the first end of which is in communication with the limiting hole 4011, and the second end of which penetrates the surface of the support portion 402. It can be understood that the support portion 402 includes a first side surface and a second side surface opposite to each other, and the first side surface of the support portion 402 is connected to the inner wall of the accommodating cavity. The through slot 4021 penetrates the first side surface and the second side surface of the support portion 402, the first end of the through slot 4021 is located on the first side surface of the support portion 402, so that the first end of the through slot 4021 is in communication with the limiting hole 4011, and the second end of the through slot 4021 is located on the second side surface of the support portion 402.

[0049] It should be understood that the support portion 402 is provided to stabilize the frame 30. A portion of the frame 30 passes through the limiting hole 4011 and is located in the through groove 4021 and is closely connected to the inner wall of the through groove 4021. Therefore, the structure of the through groove 4021 should match the structure of the portion of the frame 30 located in the through groove 4021. Figure 4 As shown, the first column 301 and the second column 302 are both square columns, so the through slot 4021 is a square through slot. In addition, to prevent the frame 30 from shaking after being inserted into the through slot 4021, the cross-sectional area of ​​the portion of the frame 30 located in the through slot 4021 is equal to the cross-sectional area of ​​the through slot 4021.

[0050] In some embodiments of the present application, Figure 3 As shown, the inner wall of the through slot 4021 is provided with an anti-skid structure, which includes an anti-skid protrusion and / or an anti-skid groove. By setting the anti-skid structure, the friction between the inner wall of the through slot 4021 and the frame 30 can be increased, thereby improving the connection stability between the through slot 4021 and the frame 30.

[0051] According to the embodiment of the present application, the base 40 includes a support portion 402, the support portion 402 is arranged corresponding to the limiting hole 4011, and the protrusion is arranged on the inner wall of the accommodating cavity; the support portion 402 is provided with a through groove 4021, the first end of the through groove 4021 is connected to the limiting hole 4011, and the second end of the through groove 4021 passes through the surface of the support portion 402. Through the arrangement of the support portion 402, the contact area between the base 40 and the frame 30 is increased, the possibility of the frame 30 shaking is further reduced, and the stability of the frame 30 is improved. At the same time, through the arrangement of the support portion 402, the volume and weight of the base 40 are reduced while the stability of the frame 30 is improved, thereby reducing the production cost of the three-dimensional printing device.

[0052] In some embodiments, Figures 4 to 7 As shown, the base 40 further includes a fixing plate 403 , which is fixedly connected to the surface of the support portion 402 and covers the second end of the through slot 4021 , and the frame 30 passes through the limiting hole 4011 and the through slot 4021 in sequence and is connected to the fixing plate 403 .

[0053] The fixing plate 403 covers the second end of the through slot 4021, which can be understood as follows: when the fixing plate 403 is connected to the support portion 402, the opening of the through slot 4021 formed on the second side surface of the support portion 402 is sealed by the fixing plate 403. Specifically, the vertical projection of the fixing plate 403 on the support portion 402 covers the second end of the through slot 4021.

[0054] It is understandable that the number of the fixing plates 403 is not limited here, and the number of the fixing plates 403 should correspond to the number of the supporting parts 402, that is, the number of the columns.

[0055] In the embodiment of the present application, the fixing plate 403 is provided with a first through hole 4031 and a second through hole 4032. In actual use, the fixing plate 403 is first fixed to the support portion 402, the surface of the support portion 402 is provided with a first threaded connection hole, the first through hole 4031 of the fixing plate 403 is arranged corresponding to the first threaded connection hole, and a screw is threadedly connected with the first threaded connection hole through the first through hole 4031 to fix the fixing plate 403 with the support portion 402, and the fixing plate 403 covers the second end of the through slot 4021. It can be understood that the area of ​​the fixing plate is larger than the cross-sectional area of ​​the through slot 4021. Then install the frame 30 into the through slot 4021. When the column extends into the through slot 4021, the end face of the column contacts the surface of the fixing plate 403. A second threaded connection hole is provided on the end face of the column. The second through hole 4032 of the fixing plate 403 is correspondingly arranged to the second threaded connection hole. The screw is threadedly connected to the second threaded connection hole through the second through hole 4032 to fix the column to the fixing plate 403.

[0056] It should be understood that the specific manner of connecting the frame 30 to the fixed plate 403 is not limited to the above scheme. For example, in other embodiments, the frame 30 and the fixed plate 403 are fixedly connected by welding or the like. According to the embodiment of the utility model, the base 40 includes a fixed plate 403, the fixed plate 403 is fixedly connected to the support portion 402 and covers the second end of the through slot 4021, and the frame 30 is connected to the fixed plate 403 through the limiting hole 4011 and the through slot 4021 in sequence. Through the arrangement of the above-mentioned fixed plate 403, on the one hand, a certain supporting force can be provided for the frame 30, and on the other hand, the frame 30 can be limited to move along the extension direction of the through slot 4021, thereby further improving the stability of the frame 30.

[0057] In some embodiments of the present application, the shell 401 of the base 40 is integrally formed, and the shell 401 is made of metal or plastic.

[0058] In some embodiments, the housing 401 is made of metal and is an integrally formed structure. In other embodiments, the housing 401 is made of plastic. Specifically, in a specific implementation, the housing 401 can be integrally formed of plastic by a process such as injection molding.

[0059] In some embodiments, the housing 401 can be made of any metal, such as copper, iron, aluminum, and alloy materials. In other embodiments, the housing 401 can be made of any plastic, such as polyethylene, polypropylene, acrylonitrile butadiene styrene plastic (ABS plastic) and polystyrene.

[0060] In the embodiment of the utility model, the shell 401 of the base 40 is integrally formed, and the shell 401 is made of metal or plastic. Through the above arrangement, compared with the background technology in which the base 40 is spliced ​​by multiple straight strips of metal profiles, the base in the present application can be used directly without splicing, which reduces the difficulty of making the base 40. At the same time, since the shell 401 is provided with a receiving cavity, that is, the base is hollow, the weight of the base 40 is also reduced.

[0061] In some embodiments of the present application, the base 40 includes a cover plate 404 , which is connected to the housing 401 to close the accommodating cavity.

[0062] It should be understood that the specific connection method between the cover plate 404 and the housing 401 is not limited here. For example, in some embodiments, the cover plate 404 and the housing 401 are detachably connected by snapping. In other embodiments, the cover plate 404 and the housing 401 are detachably connected by components such as screws and nuts.

[0063] See also Figure 1 and Figure 2 The cover plate 404 is connected to the shell 401 to close the accommodating cavity, which can be understood as follows: the accommodating cavity enclosed by the shell 401 has an opening, and the cover plate 404 is connected to the shell 401 to seal the opening of the accommodating cavity, so that the accommodating cavity is a sealed cavity.

[0064] In the embodiment of the utility model, the base 40 includes a cover plate 404, which is connected to the housing 401 to close the accommodating cavity. Through the above arrangement, other components arranged in the accommodating cavity can be protected to a certain extent, so as to avoid damage to other components arranged in the accommodating cavity due to external forces.

[0065] In some embodiments of the present invention, the cover plate 404 is snap-connected to the housing 401 , or the cover plate 404 is connected to the fixing plate 403 by screws to be connected to the housing 401 ; and supporting feet 4042 are provided on the cover plate 404 .

[0066] It should be understood that the specific manner in which the cover plate 404 is engaged with the housing 401 is not limited herein. For example, in some embodiments, the cover plate 404 is provided with one of a first engagement platform and a first engagement slot, and the housing 401 is provided with the other of the first engagement platform and the first engagement slot, and the cover plate 404 is engaged with the housing 401 by partially positioning the first engagement platform in the first engagement slot.

[0067] It should be understood that the cover plate 404 is connected to the fixing plate 403 by screws, and the specific method of connecting to the housing 401 is not limited here. For ease of understanding, the following will be explained by example. Figure 6 and Figure 7As shown, the fixing plate 403 is further provided with a third threaded connection hole 4033, and the cover plate 404 is provided with a third through hole 4041 corresponding to the third threaded connection hole 4033. A screw is passed through the third through hole 4041 and connected to the third threaded connection hole 4033, so that the cover plate 404 is fixedly connected to the housing 401. Figure 4 and Figure 5 In this embodiment, the number of the fixing plates 403 is two, which are respectively denoted as the first fixing plate 403 and the second fixing plate 403 .

[0068] It should be understood that the support feet 4042 provided on the cover plate 404 can be understood as the support feet 4042 being provided on the side of the cover plate 404 away from the housing 401. During the use of the three-dimensional printing device, the three-dimensional printing device is placed on the support plane through the support feet 4042. Due to the provision of the support feet 4042, when the three-dimensional printing device is placed on a desktop, there is a certain gap between the bottom surface of the base and the desktop, which can facilitate the user to move the three-dimensional printing device. The number of support feet 4042 is not limited here. In a specific implementation, the number of support feet 4042 is multiple, and the multiple support feet 4042 are evenly distributed around the cover plate 404.

[0069] like Fig. 9 As shown, in some embodiments, the support legs 4042 are integrally formed with the cover plate 404 , and there are four support legs 4042 , which are evenly distributed around the cover plate 404 .

[0070] In the embodiment of the utility model, the cover plate 404 is connected to the housing 401 by snapping, or the cover plate 404 is connected to the fixing plate 403 by screws, so as to be connected to the housing 401; the cover plate 404 is provided with supporting feet 4042. By providing the supporting feet 4042, on the one hand, the cover plate 404 can be raised to avoid the cover plate 404 directly contacting with the supporting plane over a large area and causing wear, and it is also convenient for the user to move the 3D printer. On the other hand, by snapping the cover plate 404 to the housing 401, or by connecting the cover plate 404 to the fixing plate 403 by screws, the convenience of disassembling and installing the cover plate 404 can be improved, and it is convenient for the user to repair other components arranged in the accommodating cavity.

[0071] In some embodiments of the present application, the three-dimensional printing device further includes a power supply, a main control circuit board and a fan, and the fan is used to dissipate heat from the power supply and the main control circuit board; the power supply, the main control circuit board and the fan are all installed in the accommodating cavity.

[0072] It should be understood that the power supply, the main control circuit board and the fan are all installed in the accommodating cavity, and the specific connection method of the power supply, the main control circuit board and the fan with the housing 401 is not limited here. At the same time, the specific connection method of the power supply, the main control circuit board and the fan with the housing 401 can be the same or different.

[0073] In the embodiment of the utility model, the three-dimensional printing device also includes a power supply, a main control circuit board and a fan, and the fan is used to dissipate heat from the power supply and the main control circuit board; the power supply, the main control circuit board and the fan are all installed in the accommodating cavity. Since the power supply, the main control circuit board and the fan are all installed in the accommodating cavity, the power supply, the main control circuit board and the fan can be protected to a certain extent, thereby extending the service life of the power supply, the main control circuit board and the fan.

[0074] In some embodiments of the present application, ventilation holes are provided on the housing 401 and / or the cover plate 404, and the ventilation holes are used to allow air in the accommodating cavity to flow.

[0075] It should be understood that the shape of the ventilation hole is not limited herein. For example, in some embodiments, the ventilation hole is a circular through hole. In other embodiments, the ventilation hole is a waist-shaped through hole. In other embodiments, the ventilation hole is an irregular through hole.

[0076] It should be understood that the number of ventilation holes can be one or more. In a specific implementation, at least one of the housing 401 and the cover plate 404 is provided with ventilation holes. In the case where both the housing 401 and the cover plate 404 are provided with ventilation holes, the structures and numbers of the ventilation holes on the housing 401 and the cover plate 404 can be the same or different.

[0077] In the embodiment of the utility model, ventilation holes are provided on the outer shell 401 and / or the cover plate 404. Through the setting of the ventilation holes, the air in the accommodating chamber can enter the outside through the ventilation holes, and the outside air can also enter the accommodating chamber through the ventilation holes, so that the air in the accommodating chamber flows through the ventilation holes, and the heat generated by the power supply in the accommodating chamber when working is discharged to the outside, thereby reducing the temperature in the accommodating chamber.

[0078] Alternatively, if Figure 8 and Fig. 9 As shown, in some embodiments, the three-dimensional printing device further includes a display screen 50, which is connected to the housing 401 and is located outside the accommodating cavity; the display screen 50 is electrically connected to the main control circuit board.

[0079] It should be understood that the specific manner in which the display screen 50 is electrically connected to the main control circuit board is not limited herein. In some embodiments, the display screen 50 is electrically connected to the main control circuit board by wires or other structures. In other embodiments, the display screen 50 is electrically connected to the main control circuit board by wireless signals or other means.

[0080] It should be understood that the specific manner of connecting the display screen 50 and the housing 401 is not limited herein. For example, in some embodiments, the display screen 50 and the housing 401 are fixedly connected by welding or the like. In other embodiments, the display screen 50 and the housing 401 are detachably connected by means of screws and nuts or the like.

[0081] It should be noted that the display screen 50 is electrically connected to the main control circuit board, which can be understood as the content displayed on the display screen 50 can be controlled by the main control circuit board. In some embodiments, the display screen 50 can receive user input and convert the user input into an electrical signal and transmit it to the main control circuit board.

[0082] In the embodiment of the utility model, the 3D printing device further includes a display screen 50, which is connected to the housing 401 and is located outside the accommodating cavity; the display screen 50 is electrically connected to the main control circuit board. The display screen 50 can facilitate the user to understand and control the printing status of the 3D printing device.

[0083] like Fig.10 As shown, in some embodiments, the display screen 50 includes a display screen body 501 and a first connecting member 502 that are connected to each other;

[0084] The base 40 is provided with a second connecting member 405 , and the first connecting member 502 and the second connecting member 405 are engaged and connected.

[0085] It should be understood that the specific connection method between the display screen body 501 and the first connecting member 502 is not limited herein. For example, in some embodiments, the display screen body 501 and the first connecting member 502 are integrally formed. In other embodiments, the display screen body 501 and the first connecting member 502 are fixedly connected by welding or the like. In other embodiments, the display screen body 501 and the first connecting member 502 are detachably connected by components such as screws and nuts.

[0086] It should be understood that the specific manner in which the first connector 502 and the second connector 405 are snap-fitted is not limited herein. For example, in some embodiments, the first connector 502 is one of the second snap-fit ​​platform and the second snap-fit ​​slot, and the second connector 405 is the other of the second snap-fit ​​platform and the second snap-fit ​​slot, and the first connector 502 and the second connector 405 are snap-fitted and connected by the second snap-fit ​​platform being partially located in the second snap-fit ​​slot.

[0087] For easier understanding, an example is given below. Figure 7 and Figure 8. The first connecting member 502 includes a first sub-buckle platform and a second sub-buckle platform, and the second connecting member 405 includes a first sub-card slot and a second sub-card slot, and the first sub-card slot and the second sub-card slot both extend along the target direction. The first sub-buckle platform slides into the first sub-card slot along the target direction and abuts against the inner wall of the first sub-card slot, and the second sub-buckle platform slides into the second sub-card slot along the target direction and abuts against the inner wall of the second sub-card slot, so that the first connecting member 502 and the second connecting member 405 are engaged and connected, and the display screen 50 is fixed to the base 40. When the display screen 50 needs to be removed, the display screen 50 can be slid in the opposite direction of the target direction, so that the first sub-buckle platform slides out of the first sub-card slot in the opposite direction of the target direction, and the second sub-buckle platform slides out of the second sub-card slot in the opposite direction of the target direction.

[0088] In the embodiment of the utility model, the display screen 50 includes a display screen body 501 and a first connecting member 502 connected to each other; a second connecting member 405 is provided on the base 40, and the first connecting member 502 is engaged with the second connecting member 405. Through the above arrangement, the convenience of installing and removing the display screen 50 is improved, and the use of screws or other components is reduced, thereby reducing the cost.

[0089] As a specific embodiment, the present utility model provides a three-dimensional printing device, including:

[0090] A print head module 10 and a printing platform 20, wherein the print head module 10 is used to print a model on the printing platform 20;

[0091] A frame 30, the frame 30 is slidably connected to the print head module 10;

[0092] The base 40 is connected to the printing platform 20; wherein the base 40 includes a shell 401, the shell 401 is arranged to form a receiving cavity, a limiting hole 4011 is provided on the shell 401, and the frame 30 is connected to the inner wall of the receiving cavity through the limiting hole 4011.

[0093] Among them, the base 40 includes a supporting portion 402, the supporting portion 402 is arranged corresponding to the limiting hole 4011, and the protrusion is arranged on the inner wall of the accommodating cavity; the supporting portion 402 is provided with a through groove 4021, the first end of the through groove 4021 is connected to the limiting hole 4011, and the second end of the through groove 4021 passes through the surface of the supporting portion 402.

[0094] The base 40 further includes a fixing plate 403 , which is fixedly connected to the support portion 402 and covers the second end of the through slot 4021 . The frame 30 passes through the limiting hole 4011 and the through slot 4021 in sequence and is connected to the fixing plate 403 .

[0095] The inner wall of the through groove 4021 is provided with an anti-skid structure, which includes anti-skid protrusions and / or anti-skid grooves; the shell 401 of the base 40 is integrally formed, and the shell 401 is made of metal or plastic.

[0096] The base 40 includes a cover plate 404 , which is connected to the housing 401 to seal the accommodating cavity.

[0097] The cover plate 404 is snap-connected with the housing 401 , or the cover plate 404 is connected with the fixing plate 403 by screws, so as to be connected with the housing 401 ; the cover plate 404 is provided with supporting feet 4042 .

[0098] It also includes a power supply, a main control circuit board and a fan, and the fan is used to dissipate heat from the power supply and the main control circuit board; the power supply, the main control circuit board and the fan are all installed in the accommodating cavity.

[0099] The housing 401 and / or the cover plate 404 are provided with ventilation holes, and the ventilation holes are used to allow air in the accommodating cavity to flow.

[0100] It also includes a display screen 50, which is connected to the housing 401 and is located outside the accommodating cavity; the display screen 50 is electrically connected to the main control circuit board.

[0101] The display screen 50 includes a display screen body 501 and a first connecting member 502 which are connected to each other;

[0102] The base 40 is provided with a second connecting member 405 , and the first connecting member 502 and the second connecting member 405 are engaged and connected.

[0103] See also Figure 1-Figure 8 The following will take the three-dimensional printing device provided in this embodiment as an example to illustrate the installation process of the three-dimensional printing device. In this embodiment, the frame 30 is a gantry frame, including a first column 301, a second column 302 and a crossbeam 303.

[0104] See also Figure 4 and Figure 5 , a nut is embedded in the support part 402, a second threaded connection hole is provided on the end surface of the column, and a first through hole 4031 and a second through hole 4032 are provided on the fixing plate 403. In actual use, the support part 402 is first connected to the inner wall of the accommodating cavity, and then the fixing plate 403 is correspondingly arranged with the support part 402, and a screw is passed through the first through hole 4031 and threadedly connected with the nut embedded in the support part 402 to fix the fixing plate 403 to the support part 402, so that the fixing plate 403 covers the second end of the through slot 4021.

[0105] Then, the first column 301 is sequentially passed through the corresponding limiting hole 4011 and the through slot 4021, and the screw is passed through the corresponding second through hole 4032 and threadedly connected to the second threaded through hole of the first column 301, so that the first column 301 is connected and fixed to the first fixing plate 403. The second column 302 is sequentially passed through the corresponding limiting hole 4011 and the through slot 4021, and the screw is passed through the corresponding second through hole 4032 and threadedly connected to the second threaded through hole of the second column 302, so that the second column 302 is connected and fixed to the second fixing plate 403.

[0106] See also Figure 6 and Figure 7 The fixing plate 403 is also provided with a third threaded connection hole 4033, and the cover plate 404 is provided with a third through hole 4041 corresponding to the third threaded connection hole 4033. The cover plate 404 is arranged corresponding to the housing 401 to seal the opening of the accommodating cavity, and the third through hole 4041 is made to correspond to the third threaded connection hole 4033, and then a bolt is passed through the third through hole 4041 to connect with the third threaded connection hole 4033, so that the cover plate 404 is fixedly connected to the housing 401.

[0107] Through the above-mentioned arrangement, the limiting hole 4011 on the base 40 can facilitate the alignment of the gantry frame with the base 40 and limit the movement of the gantry frame. The through groove 4021 as a fixed groove of the gantry frame can further improve the stability of the gantry frame. The arrangement of the fixing plate 403 can provide a certain supporting force to the gantry frame, further improve the connection stability between the through groove 4021 and the gantry frame, and play a role in reinforcing stability.

[0108] See also Figure 8-Figure 10 The back of the display screen 50 is provided with a first sub-buckle platform and a second sub-buckle platform, and the base 40 is provided with a first sub-card slot and a second sub-card slot, both of which extend along the target direction. The first sub-buckle platform slides into the first sub-card slot along the target direction and abuts against the inner wall of the first sub-card slot, and the second sub-buckle platform slides into the second sub-card slot along the target direction and abuts against the inner wall of the second sub-card slot, so that the first connecting member 502 and the second connecting member 405 are engaged and connected, so that the display screen 50 is fixed to the base 40.

[0109] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A three-dimensional printing device, characterized in that: include: A print head module and a printing platform, wherein the print head module is used to print a model on the printing platform; A frame, the frame is slidably connected to the print head module, the frame comprises a first column, a second column, a crossbeam and a slide rail; A base connected to the printing platform; wherein the base includes a shell, the shell is arranged to form a accommodating cavity, a limiting hole is opened on the shell, the frame is connected to the inner wall of the accommodating cavity through the limiting hole, the limiting hole includes a first limiting hole and a second limiting hole, the first limiting hole is used to accommodate part of the first column, the second limiting hole is used to accommodate part of the second column, and the distance between the first column and the second column is equal to the distance between the first limiting hole and the second limiting hole.

2. The three-dimensional printing device according to claim 1, characterized in that: The base includes a supporting portion, and the supporting portion is protruded on the inner wall of the accommodating cavity; the supporting portion is provided with a through groove, a first end of the through groove is connected to the limiting hole, and a second end of the through groove passes through the surface of the supporting portion.

3. The three-dimensional printing device according to claim 2, characterized in that: The base further includes a fixing plate, which is fixedly connected to the surface of the support portion and covers the second end of the through slot, and the frame passes through the limiting hole and the through slot in sequence and is connected to the fixing plate.

4. The three-dimensional printing device according to claim 2, characterized in that: The inner wall of the through groove is provided with an anti-skid structure, and the anti-skid structure includes an anti-skid protrusion and / or an anti-skid groove; the shell of the base is integrally formed, and the shell is made of metal or plastic.

5. The three-dimensional printing device according to claim 3, characterized in that: The base includes a cover plate, and the cover plate is connected to the shell to close the accommodating cavity.

6. The three-dimensional printing device according to claim 5, characterized in that: The cover plate is snap-connected with the housing, or the cover plate is connected with the fixing plate by screws so as to be connected with the housing; and supporting feet are arranged on the cover plate.

7. The three-dimensional printing device according to claim 5, characterized in that: It also includes a power supply, a main control circuit board and a fan, wherein the fan is used to dissipate heat from the power supply and the main control circuit board; the power supply, the main control circuit board and the fan are all installed in the accommodating cavity.

8. The three-dimensional printing device according to claim 7, characterized in that: The housing and / or the cover plate are provided with ventilation holes, and the ventilation holes are used to allow air in the accommodating cavity to flow.

9. The three-dimensional printing device according to claim 7, characterized in that: It also includes a display screen, which is connected to the housing and located outside the accommodating cavity; the display screen is electrically connected to the main control circuit board.

10. The three-dimensional printing device according to claim 9, characterized in that: The display screen comprises a display screen body and a first connecting member connected to each other; The base is provided with a second connecting piece, and the first connecting piece and the second connecting piece are snap-connected.

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