3D printing equipment

Abstract

The invention discloses 3D printing equipment, and belongs to the technical field of printing equipment. According to the 3D printing equipment, one printing bin can be matched with a plurality of forming bins, the forming bins are all placed on the corresponding moving seats with the moving wheels when not working, before printing work is executed, the forming bins needing to be used are pushed to the position below the printing bin, then the lifting driving mechanism jacks the forming bins, so that the first bin opening and the second bin opening are in butt joint, and the printing work is completed. Therefore, the forming bin and the printing bin can be quickly assembled. After printing is completed, the printed forming bin descends through the lifting driving mechanism so that the printed forming bin can be supported on the moving base again, on one hand, the printed forming bin can be moved to the next station for subsequent operation, and on the other hand, the next ready forming bin and the printing bin can be assembled. Compared with the prior art, the method has the advantages that the occupied auxiliary working hours of the printing host can be greatly reduced, and the use efficiency of the printing host is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing equipment, and in particular to a 3D printing equipment. Background Art

[0002] 3D printing technology is a technology that converts digital models into physical objects by adding materials layer by layer. It has been gradually promoted and applied in the production and manufacturing fields of medical devices, aerospace equipment, military equipment and consumer electronic components.

[0003] In existing 3D printing equipment, the molding chamber is usually integrated into the printing host. When cleaning the molding chamber before and after printing, the molding chamber cannot be disassembled, which makes the cleaning operation difficult and time-consuming, and the actual use efficiency of the printing host is low. Summary of the invention

[0004] The object of the present invention is to provide a 3D printing device, which can significantly reduce the auxiliary man-hours occupied by the printing host and improve the use efficiency of the printing host.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] A 3D printing device, comprising:

[0007] A printing host, the printing host comprising a printing chamber and a bracket, the printing chamber being arranged on the bracket, the printing chamber comprising a printing cavity and a first chamber opening, the first chamber opening being arranged at the bottom of the printing chamber;

[0008] At least one molding mechanism, the molding mechanism comprising a molding chamber, a printing substrate, a molding lifting drive and a moving seat, the molding chamber is placed on the moving seat, the moving seat is provided with moving wheels, the molding chamber comprises a molding cavity and a second bay opening corresponding to the first bay opening; the printing substrate is arranged in the molding cavity, and the molding lifting drive is used to drive the printing substrate to rise and fall;

[0009] A lifting drive mechanism, wherein the lifting drive mechanism can drive any of the molding bins to lift and lower so that the molding bin is docked with the printing bin. When the molding bin is docked with the printing bin, the molding cavity is connected with the printing cavity through the first bin opening and the second bin opening.

[0010] As an optional solution for the 3D printing device, the first port is sealed and connected to the second port;

[0011] The printing chamber is provided with an inflatable connector, and the inflatable connector is used to introduce gas into the printing cavity;

[0012] The printing chamber is also provided with an exhaust connector, and the exhaust connector is used to exhaust the gas in the printing cavity.

[0013] As an optional solution of the 3D printing device, the 3D printing device further includes a vacuum pumping mechanism, and the vacuum pumping mechanism is used to vacuum the printing chamber.

[0014] As an optional solution for the 3D printing device, the printing host further includes:

[0015] A first compartment cover, the first compartment cover being disposed at the first compartment opening;

[0016] A first opening and closing driving assembly is used to drive the first compartment cover to move to open or close the first compartment opening; and / or,

[0017] The forming mechanism also includes:

[0018] A second bin cover, the second bin cover is arranged at the second bin opening;

[0019] The second opening and closing driving assembly is used to drive the second compartment cover to move to open or close the second compartment opening.

[0020] As an optional solution for the 3D printing device, the first opening and closing driving component includes:

[0021] A plurality of rollers, wherein the plurality of rollers are used to convey the first bin cover;

[0022] A first opening and closing driving member, wherein the first opening and closing driving member is used to drive the first compartment cover to translate in a horizontal direction.

[0023] As an optional solution for the 3D printing device, the second compartment cover is provided with a first connecting structure;

[0024] The second opening and closing driving assembly comprises:

[0025] a second connection structure;

[0026] An opening and closing driving module is installed on the first compartment cover, and is used to drive the second connecting structure to move so as to connect or separate the second connecting structure from the first connecting structure.

[0027] As an optional solution for the 3D printing device, one of the first connecting structure and the second connecting structure is a hanging ear, and the other is a hook, and the hanging ear can be hung on the hook.

[0028] As an optional solution of the 3D printing device, the molding mechanism further includes a lifting piston, the lifting piston is slidably disposed in the molding cavity, the driving end of the molding lifting drive member is connected to the lifting piston, and the printing substrate is fixed to the lifting piston; the lifting piston divides the molding cavity into two cavities;

[0029] The 3D printing device further comprises an air pressure balancing mechanism, and the air pressure balancing mechanism is used to adjust the air pressure in at least one of the cavities.

[0030] As an optional solution for the 3D printing device, the gas pressure balance mechanism includes a first gas connector and a second gas connector, the first gas connector is fixed to the bracket, the second gas connector is fixed to the molding chamber, and when the molding chamber is docked with the printing chamber, the first gas connector is connected to the second gas connector; and / or,

[0031] The 3D printing device also includes a first electrical connector and a second electrical connector, wherein the first electrical connector is fixed to the bracket, and the second electrical connector is fixed to the molding chamber, and when the molding chamber is docked with the printing chamber, the first electrical connector is connected to the second electrical connector.

[0032] As an optional solution for the 3D printing device, the molding lifting drive member is arranged outside the molding chamber, the molding chamber is provided with a through hole, and the driving end of the molding lifting drive member passes through the through hole and extends into the molding cavity to be connected with the lifting piston.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In the 3D printing device of the present invention, one printing chamber can be equipped with multiple molding chambers. When the molding chambers are not working, they are placed on their respective mobile seats with moving wheels. Before executing the printing work, the molding chamber to be used is pushed to the bottom of the printing chamber, and then the lifting drive mechanism lifts the molding chamber so that the first chamber opening and the second chamber opening are docked, thereby realizing the rapid assembly of the molding chamber and the printing chamber. After the printing is completed, the printed molding chamber is lowered by the lifting drive mechanism so that the printed molding chamber is re-supported on its moving seat. On the one hand, the printed molding chamber can be moved to the next station for subsequent operations, and on the other hand, the next ready molding chamber can be assembled with the printing chamber to continue the printing work of the next product. Compared with the prior art, it can greatly reduce the auxiliary man-hours occupied by the printing host and improve the use efficiency of the printing host. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The structure of the 3D printing device when the molding chamber and the printing chamber are assembled in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 2 The structure of the 3D printing device when the molding chamber and the printing chamber are assembled in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 3The structure of the 3D printing device after the molding chamber and the printing chamber are assembled in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0038] Figure 4 The structure of the 3D printing device after the molding chamber and the printing chamber are assembled in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0039] Figure 5 The structure of the printing host in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 6 The structure of the printing host in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 7 It is a structural schematic diagram of a forming mechanism in an embodiment of the present invention;

[0042] Figure 8 for Figure 1 Enlarged view of point A.

[0043] Reference numerals:

[0044] 1. Printing host; 11. Printing chamber; 111. Printing chamber; 112. First chamber opening; 12. Bracket; 13. Inflatable connector; 14. Exhaust connector; 15. Vacuuming mechanism; 161. First chamber cover; 162. First opening and closing drive assembly; 1621. Roller; 1622. First opening and closing drive member;

[0045] 2. Molding mechanism; 21. Molding chamber; 211. Molding cavity; 212. Second chamber opening; 213. Through hole; 22. Printing substrate; 23. Molding lifting drive member; 24. Moving seat; 241. Moving wheel; 251. Second chamber cover; 2511. First connecting structure; 252. Second opening and closing drive assembly; 2521. Second connecting structure; 2522. Opening and closing drive module; 25221. Opening and closing translation drive member; 25222. Opening and closing lifting drive member; 26. Lifting piston;

[0046] 3. Lifting drive mechanism; 31. Docking lifting drive member;

[0047] 41. First gas connection piece; 42. Second gas connection piece; 51. First electrical connection piece; 52. Second electrical connection piece. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0055] like Figure 1-8 As shown, the present embodiment provides a 3D printing device, including a printing host 1, a molding mechanism 2 and a lifting drive mechanism 3, the printing host 1 includes a printing chamber 11 and a bracket 12, the printing chamber 11 is arranged on the bracket 12, the printing chamber 11 includes a printing cavity 111 and a first chamber opening 112, and the first chamber opening 112 is arranged at the bottom of the printing chamber 11; at least one molding mechanism 2 is provided, each molding mechanism 2 includes a molding chamber 21, a printing substrate 22, a molding lifting drive member 23 and a moving seat 24, and the molding chamber 21 is placed on the moving seat 2 4. The moving seat 24 is provided with a moving wheel 241. The molding chamber 21 includes a molding cavity 211 and a second chamber opening 212 corresponding to the first chamber opening 112. The printing substrate 22 is arranged in the molding cavity 211. The molding lifting driving member 23 is used to drive the printing substrate 22 to rise and fall. The lifting driving mechanism 3 can drive any molding chamber 21 to rise and fall, so that the molding chamber 21 is docked with the printing chamber 11. When the molding chamber 21 is docked with the printing chamber 11, the molding cavity 211 is connected with the printing cavity 111 through the first chamber opening 112 and the second chamber opening 212.

[0056] It should be noted that, in the 3D printing device of this embodiment, one printing chamber 11 can be equipped with multiple molding chambers 21. When the molding chambers 21 are not in operation, they are placed on their respective moving seats 24 with moving wheels 241. Before performing the printing work, the molding chamber 21 to be used is pushed to the bottom of the printing chamber 11, and then the lifting drive mechanism 3 lifts the molding chamber 21 to make the first chamber opening 112 dock with the second chamber opening 212, thereby realizing the rapid assembly of the molding chamber 21 and the printing chamber 11.

[0057] After printing is completed, the printed molding bin 21 is lowered through the lifting drive mechanism 3 so that the printed molding bin 21 can be re-supported on its movable seat 24. On the one hand, the printed molding bin 21 can be moved to the next workstation for subsequent operations. On the other hand, the next ready molding bin 21 can be assembled with the printing bin 11 to continue printing the next product. Compared with the prior art, it can greatly reduce the auxiliary working hours occupied by the printing host 1 and improve the use efficiency of the printing host 1.

[0058] Of course, in other embodiments, the molding mechanism 2 can also be provided with one. Compared with the prior art, on the one hand, the printed molding bin 21 can be moved to the next workstation for subsequent operations, and on the other hand, it is convenient to clean the molding bin 21 after use, and the molding bin 21 is easy to disassemble and assemble.

[0059] Optionally, the first port 112 is sealed and connected to the second port 212; the printing chamber 11 is provided with an inflatable connector 13 and an exhaust connector 14, the inflatable connector 13 is used to introduce gas into the printing chamber 111, and the exhaust connector 14 is used to exhaust the gas in the printing chamber 111. In this arrangement, atmospheric gas can be introduced into the printing chamber 111 and the molding chamber 211 through the inflatable connector 13, and the air in the printing chamber 111 and the molding chamber 211 can be exhausted through the exhaust connector 14 to meet different printing requirements.

[0060] Exemplarily, the inflation connector 13 is an inflation valve; and the exhaust connector 14 is an exhaust valve.

[0061] Specifically, the first port 112 is provided with a seal, such as a sealing ring, and when the molding chamber 21 is docked with the printing chamber 11, the seal is clamped between the printing chamber 11 and the molding chamber 21, thereby making the first port 112 and the second port 212 sealed and connected. Of course, the seal can also be provided at the second port 212, or both the first port 112 and the second port 212 can be provided with a seal, which is not limited here.

[0062] Optionally, the 3D printing device further includes a vacuum pumping mechanism 15, which is used to vacuumize the printing chamber 111. Before introducing the atmospheric gas into the printing chamber 111, the printing chamber 111 and the molding chamber 211 are first vacuumized by the vacuum pumping mechanism 15 until the vacuum degree in the printing chamber 111 and the molding chamber 211 reaches a preset value, and then the atmospheric gas is filled into the printing chamber 111 and the molding chamber 211 to a required pressure value through the inflatable connector 13, which not only realizes rapid gas washing, but also helps to reduce the amount of atmospheric gas used, thereby saving costs.

[0063] Exemplarily, the vacuum extraction mechanism 15 is a vacuum pump.

[0064] Optionally, the printing host 1 further includes a first compartment cover 161 and a first opening and closing drive assembly 162, wherein the first compartment cover 161 is disposed at the first compartment opening 112; the first opening and closing drive assembly 162 is used to drive the first compartment cover 161 to move to open or close the first compartment opening 112, so as to realize the rapid opening and closing of the first compartment cover 161, thereby improving the automation level of the 3D printing device and reducing the labor intensity. When the printing compartment 11 is not in use, the first compartment opening 112 is closed by the first compartment cover 161, which can not only prevent the printing compartment 11 from being polluted by the external environment, but also prevent the materials in the printing compartment 11 from polluting the external environment. When the printing compartment 11 needs to be used, the first compartment cover 161 can be opened by the first opening and closing drive assembly 162, which is convenient to operate.

[0065] Optionally, the molding mechanism 2 further includes a second bin cover 251 and a second opening and closing drive assembly 252, wherein the second bin cover 251 is disposed at the second bin opening 212; the second opening and closing drive assembly 252 is used to drive the second bin cover 251 to move to open or close the second bin opening 212, so as to realize the rapid opening and closing of the second bin cover 251, thereby improving the automation level of the 3D printing device and reducing the labor intensity. When the molding bin 21 is not in use, the second bin opening 212 is closed by the second bin cover 251, which can not only prevent the molding bin 21 from being polluted by the external environment, but also prevent the materials in the molding bin 21 from polluting the external environment. When the molding bin 21 needs to be used, the second bin cover 251 can be opened by the second opening and closing drive assembly 252, which is convenient to operate.

[0066] Optionally, the first opening and closing driving assembly 162 includes a plurality of rollers 1621 and a first opening and closing driving member 1622, wherein the plurality of rollers 1621 are used to convey the first compartment cover 161; specifically, the plurality of rollers 1621 are arranged along the moving direction of the first compartment cover 161, and the plurality of rollers 1621 are rotatably disposed on the bracket 12, and the first compartment cover 161 is placed on the plurality of rollers 1621. The first opening and closing driving member 1622 is used to drive the first compartment cover 161 to translate in a horizontal direction. By conveying the first compartment cover 161 through the plurality of rollers 1621, the smoothness of opening and closing the first compartment cover 161 can be improved, thereby improving the user experience. By driving the first compartment cover 161 to translate in a horizontal direction through the first opening and closing driving member 1622, the first compartment cover 161 can be opened or closed, so as to facilitate the first compartment cover 161 to avoid the molding compartment 21, and facilitate the assembly of the molding compartment 21 with the printing compartment 11.

[0067] Optionally, the plurality of rollers 1621 are divided into two groups, each group includes a plurality of rollers 1621 , and the two groups of rollers 1621 are respectively located on both sides of the first compartment cover 161 to improve the stability of the movement of the first compartment cover 161 .

[0068] Optionally, the second compartment cover 251 is provided with a first connection structure 2511; the second opening and closing driving assembly 252 includes a second connection structure 2521 and an opening and closing driving module 2522, the opening and closing driving module 2522 is installed on the first compartment cover 161, and the opening and closing driving module 2522 is used to drive the second connection structure 2521 to move so that the second connection structure 2521 is connected to or separated from the first connection structure 2511. It should be noted that when opening the first compartment cover 161, the second connection structure 2521 is first driven to move by the opening and closing driving module 2522 so that the second connection structure 2521 is connected to the first connection structure 2511, and then the first opening and closing driving member 1622 drives the first compartment cover 161 to move horizontally, so that the second compartment cover 251 can be opened by moving horizontally together with the first compartment cover 161, which has a simple structure and convenient operation.

[0069] Specifically, the first connection structure 2511 is a hanging ear, and the second connection structure 2521 is a hook, and the hanging ear can be hung on the hook. Such a configuration facilitates the connection or separation of the hanging ear and the hook, has a simple structure, and is low in cost. Of course, the first connection structure 2511 can also be a hook, and the second connection structure 2521 can be a hanging ear.

[0070] For example, Figure 8 As shown, the opening and closing drive module 2522 includes an opening and closing translational drive member 25221 and an opening and closing lifting drive member 25222. The opening and closing translational drive member 25221 is installed on the first compartment cover 161. The driving end of the opening and closing translational drive member 25221 is connected to the opening and closing lifting drive member 25222 so that the opening and closing translational drive member 25221 can drive the opening and closing lifting drive member 25222 to translate. The driving end of the opening and closing lifting drive member 25222 is connected to the second connecting structure 2521 to drive the second connecting structure 2521 to rise and fall, thereby realizing the connection or separation of the second connecting structure 2521 with the first connecting structure 2511.

[0071] Optionally, the first connection structure 2511, the second connection structure 2521 and the opening and closing driving module 2522 are each provided with four, and the first connection structure 2511 and the opening and closing driving module 2522 are arranged in one-to-one correspondence with the second connection structure 2521, thereby facilitating the improvement of the stability of the movement of the second bin cover 251. Exemplarily, the four second connection structures 2521 are arranged in a quadrilateral to further improve the stability of the movement of the second bin cover 251. Of course, the first connection structure 2511, the second connection structure 2521 and the opening and closing driving module 2522 can also be provided with two, three, five or more, which is not limited here.

[0072] Optionally, the molding mechanism 2 also includes a lifting piston 26, which is slidably disposed in the molding cavity 211, the driving end of the molding lifting drive member 23 is connected to the lifting piston 26, and the printing substrate 22 is fixed to the lifting piston 26; the lifting piston 26 divides the molding cavity 211 into two cavities; the 3D printing device also includes an air pressure balancing mechanism, which is used to adjust the air pressure in at least one cavity, so that the air pressure of the two cavities is balanced during the printing process, thereby ensuring that the printing work proceeds normally.

[0073] Optionally, the air pressure balance mechanism includes a first gas connector 41 and a second gas connector 42. The first gas connector 41 is fixed to the bracket 12, and the second gas connector 42 is fixed to the molding chamber 21. When the molding chamber 21 is docked with the printing chamber 11, the first gas connector 41 is connected to the second gas connector 42, such as by plugging or snapping. This helps to simplify the assembly operation of the molding chamber 21 and the printing chamber 11 and improve the efficiency of disassembly and assembly of the molding chamber 21.

[0074] Exemplarily, two first gas connectors 41 and two second gas connectors 42 are provided, and the two second gas connectors 42 are respectively provided on both sides of the molding chamber 21 , and the first gas connectors 41 and the second gas connectors 42 are provided in a one-to-one correspondence.

[0075] Optionally, the 3D printing device further includes a first electrical connector 51 and a second electrical connector 52, wherein the first electrical connector 51 is fixed to the bracket 12, and the second electrical connector 52 is fixed to the molding chamber 21. When the molding chamber 21 is docked with the printing chamber 11, the first electrical connector 51 is connected to the second electrical connector 52, such as plugging or snapping. It should be noted that the printing substrate 22 is provided with a heating element, and the molding chamber 21 is provided with a sensor for detecting the printed part. The first electrical connector 51 is connected to the second electrical connector 52, so that the power supply of the heating element of the molding lifting drive 23 and the printing substrate 22 and the transmission of the sensor signal can be guaranteed. At the same time, when the molding chamber 21 is docked with the printing chamber 11, the first electrical connector 51 is synchronously connected to the second electrical connector 52, which is conducive to simplifying the assembly operation of the molding chamber 21 and the printing chamber 11 and improving the disassembly efficiency of the molding chamber 21.

[0076] For example, Figure 4 As shown, one first electrical connector 51 and one second electrical connector 52 are each provided. Of course, two or more first electrical connectors 51 and second electrical connectors 52 may also be provided, and the first electrical connector 51 and the second electrical connector 52 are provided in a one-to-one correspondence.

[0077] Optionally, the molding lifting drive member 23 is arranged on the outside of the molding bin 21, and the molding bin 21 is provided with a through hole 213. The driving end of the molding lifting drive member 23 passes through the through hole 213 and extends into the molding cavity 211 to be connected with the lifting piston 26, thereby avoiding the molding lifting drive member 23 occupying the internal space of the molding bin 21, which is beneficial to simplify the structure of the molding bin 21 and reduce costs.

[0078] Optionally, the lifting drive mechanism 3 includes a docking lifting drive member 31, which is installed on the bracket 12, and the driving end of the docking lifting drive member 31 can abut against the bottom of the molding bin 21 to drive the molding bin 21 to rise and fall.

[0079] Exemplarily, two docking lifting driving members 31 are provided, and the two docking lifting driving members 31 are respectively located on both sides of the molding bin 21 to improve the stability of the lifting of the molding bin 21. Of course, three, four, or even more docking lifting driving members 31 can also be provided, which is not limited here.

[0080] It should be noted that the present embodiment does not limit the driving forms of the docking lifting drive member 31, the molding lifting drive member 23, the first opening and closing drive member 1622, the opening and closing translation drive member 25221 and the opening and closing lifting drive member 25222. Optionally, the docking lifting drive member 31, the molding lifting drive member 23, the first opening and closing drive member 1622, the opening and closing translation drive member 25221 and the opening and closing lifting drive member 25222 can all be provided with driving force in the form of electric, hydraulic or pneumatic. In other words, the electric, hydraulic or pneumatic driving forms of the docking lifting drive member 31, the molding lifting drive member 23, the first opening and closing drive member 1622, the opening and closing translation drive member 25221 and the opening and closing lifting drive member 25222 should not be the limiting scope of the present invention. Exemplarily, the docking lifting drive member 31, the molding lifting drive member 23, the first opening and closing drive member 1622, the opening and closing translation drive member 25221 and the opening and closing lifting drive member 25222 are all servo electric cylinders with high control accuracy. Of course, the docking lifting drive member 31 and the molding lifting drive member 23 can also be servo electric cylinders, while the first opening and closing drive member 1622, the opening and closing translation drive member 25221 and the opening and closing lifting drive member 25222 are cylinders.

[0081] For example, in combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, the working principle of the 3D printing device of this embodiment is:

[0082] When the 3D printing device is not working, the first compartment cover 161 is located directly below the first compartment opening 112 and closes the first compartment opening 112 ; meanwhile, the second compartment cover 251 is located directly above the second compartment opening 212 and closes the second compartment opening 212 .

[0083] When printing is required, the movable seat 24 of the molding chamber 21 is pushed to move the molding chamber 21 to the bottom of the printing chamber 11. Before lifting the molding chamber 21, the opening and closing lifting driving member 25222 is first driven to lower the hook, and then the opening and closing translation driving member 25221 drives the opening and closing lifting driving member 25222 to translate, thereby driving the hook to translate so that the hook is inserted into the hook ear, and then the opening and closing lifting driving member 25222 drives the hook to rise, and then the second chamber cover 251 can be lifted to open the second chamber opening 212. Then, the first opening and closing driving member 1622 drives the first bin cover 161 to translate to open the first bin opening 112. At this time, the opening and closing translation driving member 25221, the opening and closing lifting driving member 25222 and the second bin cover 251 translate to one side of the printing bin 11 together with the first bin cover 161, so that the first bin opening 112 and the second bin opening 212 are arranged opposite each other. At this time, the molding bin 21 is driven to rise by the lifting driving mechanism 3, so that the first bin opening 112 and the second bin opening 212 can be docked, thereby realizing the assembly of the molding bin 21 and the printing bin 11.

[0084] After printing is completed, the lifting drive mechanism 3 drives the molding chamber 21 to descend and land on its moving seat 24, and then the first opening and closing drive member 1622 drives the first chamber cover 161 to translate to close the first chamber opening 112 again, and then the opening and closing lifting drive member 25222 drives the hook to descend to place the second chamber cover 251 on the molding chamber 21 and close the second chamber opening 212, and then the opening and closing translation drive member 25221 drives the opening and closing lifting drive member 25222 to translate, thereby driving the hook to translate, so that the hook is pulled out of the hanging ear, and then the opening and closing lifting drive member 25222 drives the hook to rise and reset. Then, the printed molding chamber 21 can be pushed to move it to the next station for subsequent operations, and the next ready molding chamber 21 is pushed to the bottom of the printing chamber 11 to continue the printing of the next product.

[0085] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A 3D printing device, characterized in that: include: A printing host (1), the printing host (1) comprising a printing chamber (11) and a bracket (12), the printing chamber (11) being arranged on the bracket (12), the printing chamber (11) comprising a printing cavity (111) and a first chamber opening (112), the first chamber opening (112) being arranged at the bottom of the printing chamber (11); At least one molding mechanism (2), the molding mechanism (2) comprising a molding chamber (21), a printing substrate (22), a molding lifting drive member (23) and a moving seat (24), the molding chamber (21) being placed on the moving seat (24), the moving seat (24) being provided with a moving wheel (241), the molding chamber (21) comprising a molding cavity (211) and a second cavity opening (212) arranged corresponding to the first cavity opening (112); the printing substrate (22) being arranged in the molding cavity (211), and the molding lifting drive member (23) being used for driving the printing substrate (22) to rise and fall; A lifting drive mechanism (3), wherein the lifting drive mechanism (3) is capable of driving any of the molding chambers (21) to lift and lower, so that the molding chamber (21) and the printing chamber (11) are docked, and when the molding chamber (21) and the printing chamber (11) are docked, the molding cavity (211) and the printing cavity (111) are connected through the first chamber opening (112) and the second chamber opening (212).

2. The 3D printing device according to claim 1, characterized in that: The first port (112) is sealedly connected to the second port (212); The printing chamber (11) is provided with an inflatable connecting piece (13), and the inflatable connecting piece (13) is used to introduce gas into the printing cavity (111); The printing chamber (11) is also provided with an exhaust connection piece (14), and the exhaust connection piece (14) is used to exhaust the gas in the printing chamber (111).

3. The 3D printing device according to claim 2, characterized in that: The 3D printing device further comprises a vacuum pumping mechanism (15), wherein the vacuum pumping mechanism (15) is used to vacuum the printing chamber (111).

4. The 3D printing device according to claim 1, characterized in that: The printing host (1) further comprises: A first bin cover (161), the first bin cover (161) being disposed at the first bin opening (112); a first opening and closing driving assembly (162), used for driving the first compartment cover (161) to move so as to open or close the first compartment opening (112); and / or, The forming mechanism (2) further comprises: A second bin cover (251), wherein the second bin cover (251) is disposed at the second bin opening (212); The second opening and closing driving assembly (252) is used to drive the second compartment cover (251) to move so as to open or close the second compartment opening (212).

5. The 3D printing device according to claim 4, characterized in that: The first opening and closing driving component (162) comprises: A plurality of rollers (1621), wherein the plurality of rollers (1621) are used to convey the first bin cover (161); A first opening and closing driving member (1622), wherein the first opening and closing driving member (1622) is used to drive the first compartment cover (161) to translate in a horizontal direction.

6. The 3D printing device according to claim 5, characterized in that: The second compartment cover (251) is provided with a first connecting structure (2511); The second opening and closing driving component (252) comprises: A second connection structure (2521); An opening and closing driving module (2522), wherein the opening and closing driving module (2522) is installed on the first bin cover (161), and the opening and closing driving module (2522) is used to drive the second connecting structure (2521) to move so as to connect or separate the second connecting structure (2521) from the first connecting structure (2511).

7. The 3D printing device according to claim 6, characterized in that: One of the first connection structure (2511) and the second connection structure (2521) is a hanging ear, and the other is a hook, and the hanging ear can be hung on the hook.

8. The 3D printing device according to claim 1, characterized in that: The molding mechanism (2) further comprises a lifting piston (26), the lifting piston (26) being slidably disposed in the molding cavity (211), the driving end of the molding lifting driving member (23) being connected to the lifting piston (26), and the printing substrate (22) being fixedly disposed on the lifting piston (26); the lifting piston (26) divides the molding cavity (211) into two cavities; The 3D printing device further comprises an air pressure balancing mechanism, and the air pressure balancing mechanism is used to adjust the air pressure in at least one of the cavities.

9. The 3D printing device according to claim 8, characterized in that: The gas pressure balance mechanism comprises a first gas connection piece (41) and a second gas connection piece (42), wherein the first gas connection piece (41) is fixedly arranged on the bracket (12), and the second gas connection piece (42) is fixedly arranged on the molding chamber (21), and when the molding chamber (21) and the printing chamber (11) are docked, the first gas connection piece (41) and the second gas connection piece (42) are connected; and / or, The 3D printing device further comprises a first electrical connector (51) and a second electrical connector (52), wherein the first electrical connector (51) is fixedly arranged on the bracket (12), and the second electrical connector (52) is fixedly arranged on the molding chamber (21), and when the molding chamber (21) is docked with the printing chamber (11), the first electrical connector (51) is connected to the second electrical connector (52).

10. The 3D printing device according to claim 8, characterized in that: The molding lifting drive member (23) is arranged outside the molding chamber (21); the molding chamber (21) is provided with a through hole (213); the driving end of the molding lifting drive member (23) passes through the through hole (213) and extends into the molding cavity (211) to be connected with the lifting piston (26).

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