3D printing device

Abstract

The present application relates to a 3D printing device. The 3D printing device comprises a supporting mechanism, a printing mechanism, a driving mechanism, and a connecting mechanism. The printing mechanism is arranged on the supporting mechanism, and the printing mechanism comprises a printing assembly and an ink jet assembly. The driving mechanism is arranged on the supporting mechanism, in driving connection with the printing assembly, and used for driving the printing assembly to print. The connecting mechanism is arranged between the printing assembly and the ink jet assembly and used for connecting the printing assembly to the ink jet assembly. Before the ink jet assembly prints, the driving mechanism drives the printing assembly to move towards the ink jet assembly, so that the printing assembly is connected to the ink jet assembly by means of the connecting mechanism. A printing assembly is connected to an ink jet assembly by arranging a connecting mechanism. At the moment, a driving mechanism does not need to be additionally arranged to drive the ink jet assembly to move, so that the number of structural parts can be reduced, thereby reducing the production cost.

Description

A 3D printing device

[0001] This application claims priority to Chinese patent application No. 2023118718171, filed on December 29, 2023, entitled “A 3D printing device”, which is incorporated herein by reference in its entirety. Technical Field

[0002] The present application belongs to the field of 3D printing technology, and specifically relates to a 3D printing device. Background Art

[0003] In traditional 3D printing technology, if you need to print a color model, you often need to set up multiple nozzles to color the printed layers. In the process of coloring the printed layers, you often need to set up corresponding drivers to drive the nozzles to color the printed layers. In this case, the number of structural parts is large and the volume is large.

[0004] Summary of the Invention

[0005] The main technical problem solved by this application is to provide a 3D printing device to solve the technical problem of a large number of structural parts and large volume required when printing color models.

[0006] To solve the above technical problems, a technical solution adopted in this application is: a 3D printing device, which includes: a supporting mechanism; a printing mechanism, which is arranged on the supporting mechanism, and the printing mechanism includes a printing component and an inkjet component; a driving mechanism, which is arranged on the supporting mechanism and is connected to the printing component for driving the printing component to print; and a connecting mechanism, which is arranged between the printing component and the inkjet component and is used to connect the printing layer and the inkjet component; wherein, before the inkjet component prints, the driving mechanism drives the printing component to move toward the inkjet component so that the printing component is connected to the inkjet component through the connecting mechanism.

[0007] Wherein, the connecting mechanism includes: a first magnetic part, which is arranged on the side of the inkjet component facing the printing component; a second magnetic part, which is arranged on the side of the printing mechanism facing the inkjet component; when the printing layer is printed, the driving mechanism drives the printing component to move toward the inkjet component until the first magnetic part and the second magnetic part are adsorbed and connected.

[0008] Wherein, the first magnetic part includes an electromagnet, and the second magnetic part includes a steel plate. When the printing layer is completed, the electromagnet is energized to magnetically attract the steel plate. When the inkjet component completes inkjet printing on the printing layer, the electromagnet is de-energized to separate the inkjet component from the steel plate.

[0009] In which, the supporting mechanism includes: a crossbeam extending along a first direction, the printing component and the inkjet component are arranged on the crossbeam, and can move relative to the crossbeam along the first direction; a longitudinal beam group, including a first longitudinal beam and a second longitudinal beam spaced apart along the first direction, the first longitudinal beam and the second longitudinal beam both extend along the second direction, the first direction and the second direction are arranged perpendicularly, the two ends of the crossbeam are respectively movably connected to the first longitudinal beam and the second longitudinal beam, and the crossbeam can slide back and forth along the second direction.

[0010] Wherein, the inkjet assembly includes: an inkjet head, which is arranged on the beam; a moisturizing assembly, which is arranged at one end of the beam close to the first longitudinal beam and is arranged on the same side of the beam as the inkjet head, and the moisturizing assembly is in contact with the inkjet head when the inkjet head is not working.

[0011] The 3D printing device further includes: a printing table, which is arranged below the printing component and can reciprocate along the first direction and a third direction, wherein the third direction is arranged perpendicular to the first direction and the second direction.

[0012] The 3D printing device further includes: a first slider and a second slider, and both ends of the crossbeam are slidably connected to the first longitudinal beam and the second longitudinal beam through the first slider and the second slider respectively.

[0013] Wherein, the driving mechanism includes: a first driving member, which is arranged on the side of the beam away from the printing mechanism along the second direction and is spaced apart from the beam; and a first transmission assembly, which is respectively connected to the first driving member, the first slider and the second slider.

[0014] In which, the first longitudinal beam is respectively provided with a first support seat and a second support seat at both ends in the second direction, and the second longitudinal beam is respectively provided with a third support seat and a fourth support seat at both ends in the second direction, the first support seat is formed with a first notch, the second support seat is formed with a second notch, the third support seat is formed with a third notch, and the fourth support seat is formed with a fourth notch, and the driving mechanism also includes: a first transmission wheel group, including a first transmission wheel arranged in the first notch and a second transmission wheel arranged in the second notch; a second transmission wheel group, including a third transmission wheel arranged in the third notch and a fourth transmission wheel arranged in the fourth notch; a first conveyor belt, which is sequentially wound around the first transmission wheel, the second transmission wheel, the third transmission wheel and the fourth transmission wheel; a first motor, which is drivingly connected to the first conveyor belt to drive the first conveyor belt to move.

[0015] The first slider is provided with a first buckle at one end facing the first conveyor belt, the second slider is provided with a second buckle at one end facing the first conveyor belt, and the first conveyor belt is partially located inside the first buckle and the second buckle.

[0016] In which, the beam includes a first surface and a second surface arranged opposite to each other along the second direction, the printing component and the inkjet component are arranged on the first surface, and the driving mechanism also includes: a second driving member, arranged on the second surface of the beam; a second transmission component, arranged on the first surface of the beam, the printing component is arranged on the second transmission component, and the second transmission component is used to drive the printing component to move along the first direction.

[0017] Wherein, the second transmission assembly includes: a third transmission wheel group, which is arranged on the first surface of the crossbeam, and the third transmission wheel group includes two fifth transmission wheels spaced apart along the first direction; a second conveyor belt, which is respectively wound around the two fifth transmission wheels, and the second conveyor belt is driven and connected to the second driving member to drive the second conveyor belt to move in the first direction; a second motor, which is driven and connected to the second conveyor belt to drive the second conveyor belt to move in the first direction.

[0018] The 3D printing device further includes: a guide rail, which is arranged on the first surface of the beam, extending along the first direction and spaced apart from the second transmission assembly along a third direction, and the guide rail is used to guide the movement of the printing mechanism along the first direction; wherein the third direction is perpendicular to the first direction and the second direction.

[0019] According to the above technical solution, the 3D printing device of the present application includes a support mechanism, a printing mechanism, a driving mechanism and a connecting mechanism; the printing mechanism is arranged on the supporting mechanism, and the printing mechanism includes a printing component and an inkjet component; the driving mechanism is arranged on the supporting mechanism and is connected to the printing component for driving the printing component to print; the connecting mechanism is arranged between the printing component and the inkjet component for connecting the printing component and the inkjet component. Before the inkjet component prints, the driving mechanism drives the printing component to move toward the inkjet component so that the printing component is connected to the inkjet component through the connecting mechanism. The present application can print the printing layer through the printing mechanism and can also realize inkjet printing of the printing layer through the inkjet component, thereby realizing color printing of the printing layer; further, before the inkjet component prints, the driving mechanism drives the printing component to move toward the side close to the inkjet component so that the printing component is connected to the inkjet component through the connecting mechanism. At this time, the printing component drives the inkjet component to move through the connecting mechanism to move the printing layer and spray ink. Therefore, by providing a connecting mechanism to connect the printing assembly and the inkjet assembly, there is no need for a separate drive mechanism to drive the inkjet assembly, thereby reducing the number of structural components and thus reducing production costs. Furthermore, the connecting mechanism is compact and lightweight, thus reducing the size of the 3D printing device, making it even more lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0021] FIG1 is a schematic top view of a 3D printing device according to an embodiment of the present invention;

[0022] FIG2 is a schematic diagram of the three-dimensional structure of an embodiment of a 3D printing device of the present application;

[0023] FIG3 is an enlarged schematic diagram of the local structure of A in FIG2 ;

[0024] FIG4 is a schematic diagram of the three-dimensional structure of an embodiment of a 3D printing device of the present application;

[0025] FIG5 is another schematic diagram of the three-dimensional structure of an embodiment of the 3D printing device of the present application;

[0026] FIG6 is an enlarged schematic structural diagram of a local structure of B in FIG1 . DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] In traditional 3D printing technology, each material can only be printed in one color, which limits the ability to print color 3D models. Furthermore, traditional 3D printing requires a separate coloring process after printing, which often increases costs and time. If a color model is to be printed, a nozzle can be configured to color the model. This requires an additional drive mechanism to drive the nozzle coloring process, which increases the number of structural components. This also increases the overall size of the 3D printing equipment.

[0030] Please refer to Figure 1, which is a front structural schematic diagram of an embodiment of a 3D printing device of the present application. An embodiment of the present application provides a 3D printing device 10. The 3D printing device 10 includes a support mechanism 11, a printing mechanism 12, a driving mechanism 13, and a connecting mechanism 14. The printing mechanism 12 is arranged on the support mechanism 11, and the printing mechanism 12 includes a printing component 121 and an inkjet component 122. The driving mechanism 13 is arranged on the support mechanism 11 and is connected to the printing component 121. The driving mechanism 13 is used to drive the printing component 121 to print. The connecting mechanism 14 is arranged between the printing component 121 and the inkjet component 122 and is used to connect the printing component 121 and the inkjet component 122. Before the inkjet component 122 prints, the driving mechanism 13 drives the printing component 121 to move toward the inkjet component 122 so that the printing component 121 is connected to the inkjet component 122 through the connecting mechanism 14.

[0031] The printing assembly 121 drives the inkjet assembly 122 to move relative to the printed layer, allowing the inkjet assembly 122 to move relative to the printed layer during the inkjet process, thereby enabling the inkjet assembly 122 to move and spray ink onto the printed layer. As can be seen from the above structure, the support mechanism 11 can provide support for the printing mechanism 12 and the drive mechanism 13, thereby improving the overall structural stability of the 3D printing device 10. The printing mechanism 12 includes the printing assembly 121 and the inkjet assembly 122. The 3D printing device 10 is capable of not only printing the printed layer but also spraying different colors of ink onto the surface of the printed layer, thereby achieving color printing, broadening the application areas of the 3D printing device 10 and improving its competitiveness. Furthermore, compared to the prior art method of using inkjet to form the printed layer, the present application first uses the printing assembly 121 to print the printed layer, and then uses the inkjet assembly 122 to spray different colors of ink onto the printed layer. This effectively reduces ink usage costs, thereby reducing the equipment cost of the 3D printing device 10. Furthermore, the use of inkjet printing on the printed layer can also improve the printing accuracy of the printed layer. Therefore, the 3D printing device 10 of the present application can save equipment costs while also improving printing accuracy, thereby effectively improving the competitiveness of the 3D printing device 10.

[0032] Furthermore, the drive mechanism 13 can drive the printing assembly 121 to perform printing operations, thereby improving the automation level and printing accuracy of the 3D printing device 10. The connection mechanism 14 can connect the printing assembly 121 to the inkjet assembly 122 via the connection mechanism 14 to drive the movement of the inkjet assembly 122. Compared with the existing solution, which provides separate drive mechanisms to drive the printing assembly 121 and the drive mechanism 13, the present solution uses a single drive mechanism 13 to simultaneously drive the printing assembly 121 and the drive mechanism 13, reducing the number of drive mechanisms 13, thereby reducing the number of structural components and the volume of the 3D printing device 10. Specifically, during the printing process of the 3D printing device 10, the driving mechanism 13 drives the printing component 121 to print the printing layer. After the printing component 121 finishes printing the printing layer, the driving mechanism 13 drives the printing component 121 to move toward the side close to the inkjet component 122, so that the printing component 121 and the inkjet component 122 are connected through the connecting mechanism 14. At this time, the printing component 121 can drive the inkjet component 122 to move through the connecting mechanism 14 to move the printing layer. The setting of the connecting mechanism 14 does not require the additional setting of the driving mechanism 13 to drive the movement of the inkjet component 122, thereby reducing the number of structural parts and thus reducing production costs. In addition, since the volume and weight of the connecting mechanism 14 are smaller and lighter than a set of driving parts, the 3D printing device 10 is not only reduced in volume, but also lighter overall.

[0033] In addition, by setting up a connecting mechanism 14 to achieve the connection between the printing component 121 and the inkjet component 122, the stability of the movement of the inkjet component 122 driven by the printing component 121 can be improved, thereby improving the stability of the inkjet component 122 during the inkjet process, and also making the printed layer more evenly colored, thereby improving the printing quality.

[0034] 3D printing is a manufacturing technology that creates three-dimensional objects by stacking materials layer by layer. After the printing assembly 121 and inkjet assembly 122 complete the inkjet printing of the current printing layer, the printing assembly 121 and inkjet assembly 122 separate, and the drive mechanism 13 continues to drive the printing assembly 121 to print the next printing layer. During the next printing layer, the printing assembly 121 drives the inkjet assembly 122 to move, and so on, until the three-dimensional object is printed.

[0035] Optionally, after the printing component 121 finishes printing a print layer, the printing component 121 can be connected to the inkjet component 122 by manual driving, or, after the printing component 121 finishes printing a print layer, the printing component 121 can be driven by the driving mechanism 13 to move toward the side close to the inkjet component 122 so that the printing component 121 and the inkjet component 122 are connected. There is no limitation here.

[0036] It should be noted that the connecting mechanism 12 is arranged between the printing component 121 and the inkjet mechanism 122. Specifically, the connecting mechanism 14 can be arranged on the side of the printing component 121 close to the inkjet component 122, or the connecting mechanism 14 can be arranged on the side of the inkjet component 122 close to the printing component 121, or the connecting mechanism 14 can be arranged partially on the side of the printing component 121 close to the inkjet component 122, and the other part is arranged on the side of the inkjet component 122 close to the printing component 121, without limitation. Please refer to Figures 1 to 3. Figure 2 is a schematic diagram of the three-dimensional structure of an embodiment of the 3D printing device of the present application; Figure 3 is an enlarged schematic diagram of the partial structure of A in Figure 2. In some embodiments, the connecting mechanism 14 includes a first magnetic member 141 and a second magnetic member 142. The first magnetic member 141 is arranged on the side of the inkjet component 122 facing the printing component 121. The second magnetic member 142 is arranged on the side of the printing mechanism 12 facing the inkjet component 122. When the printing layer is completed, the driving mechanism 13 drives the printing assembly 121 to move toward the inkjet assembly 122 until the first magnetic member 141 is attracted and connected to the second magnetic member 142 .

[0037] The connection between the printing component 121 and the inkjet component 122 can be achieved by the mutual adsorption of the first magnetic part 141 and the second magnetic part 142, and the connection between the two is achieved by magnetic attraction, which not only simplifies the connection structure, but also improves the connection strength, thereby improving the process in which the printing component 121 drives the inkjet component 122 to spray ink on the printing layer. The separation between the inkjet component 122 and the printing component 121 can be improved, thereby affecting the inkjet component 122 inkjetting and causing uneven coloring of the printing layer.

[0038] In some embodiments, the first magnetic member 141 can be a permanent magnet, and the second magnetic member 142 can be a permanent magnet attracted to the first magnetic member 141 or a magnet made of ferromagnetic material, such as iron, cobalt, nickel, etc.; or the second magnetic member 142 is a permanent magnet, and the first magnetic member 141 can be a permanent magnet attracted to the second magnetic member 142 or a magnet made of ferromagnetic material.

[0039] Optionally, the connecting mechanism 14 may use the first magnetic member 141 and the second magnetic member 142 for adsorption connection, or the connecting mechanism 14 may use a hook or other connecting mechanism to achieve a towing connection, which will not be described in detail here.

[0040] In some embodiments, only the first magnetic member 141 or only the second magnetic member 142 may be provided. When only the first magnetic member 141 is provided, the printing assembly 121 may be configured to be made of a material such as steel or iron that can be attracted by the first magnetic member 141, so that the printing assembly 121 can be directly attracted to the first magnetic member 141. When only the second magnetic member 142 is provided, the inkjet assembly 122 may be configured to be made of a material such as steel or iron that can be attracted by the first magnetic member 141, so that the inkjet assembly 122 can be attracted to the second magnetic member 142.

[0041] Optionally, the first magnetic member 141 comprises an electromagnet, and the second magnetic member 142 comprises a steel plate. Specifically, after printing of the printed layer is completed, the electromagnet is energized to generate a magnetic field that magnetically attracts the steel plate on the printing assembly 121. After the inkjet assembly 122 has finished spraying ink on the printed layer, the electromagnet is de-energized, the magnetic field disappears, and the electromagnet separates from the steel plate, thereby separating the inkjet assembly 122 from the printing assembly 121.

[0042] The electromagnet arrangement allows for better control of the adsorption and separation between the inkjet assembly 122 and the printing assembly 121 simply by turning the electromagnet on and off, making the entire control process more convenient and efficient. Furthermore, after the inkjet assembly 122 has finished spraying ink on the printed layer, the user no longer needs to manually separate the inkjet assembly 122 from the printing assembly 121, reducing labor costs and improving automation. The second magnetic member 142 is made of a steel plate to adhere to the electromagnet, which also significantly reduces material costs.

[0043] In some embodiments, the support mechanism 11 includes a crossbeam 111 and a longitudinal beam group 112. The crossbeam 111 extends along a first direction X. The printing assembly 121 and the inkjet assembly 122 are disposed on the crossbeam 111, and the printing assembly 121 and the inkjet assembly 122 can move relative to the crossbeam 111 along the first direction X. The longitudinal beam group 112 includes a first longitudinal beam 1121 and a second longitudinal beam 1122 spaced apart along the first direction X. The first longitudinal beam 1121 and the second longitudinal beam 1122 both extend along a second direction Y. The first direction X and the second direction Y are arranged perpendicularly, and the ends of the crossbeam 111 are movably connected to the first longitudinal beam 1121 and the second longitudinal beam 1122, respectively, so that the crossbeam 111 can slide back and forth along the second direction Y.

[0044] Specifically, the 3D printing device 10 further includes a first slider 16 and a second slider 17 , and both ends of the crossbeam 111 are slidably connected to the first longitudinal beam 1121 and the second longitudinal beam 1122 via the first slider 16 and the second slider 17 , respectively.

[0045] When the drive mechanism 13 drives the printing assembly 121 to print, the printing assembly 121 moves in the first direction X and the second direction Y, respectively, so that the printed layer printed by the printing assembly 121 can present a three-dimensional shape. When the printing assembly 121 finishes printing the printed layer, the drive mechanism 13 drives the printing assembly 121 to move toward the side close to the inkjet assembly 122, so that the printing assembly 121 is connected to the inkjet assembly 122 via the connecting mechanism 14. The drive mechanism 13 continues to drive the printing assembly 121 to drive the inkjet assembly 122 to move in the first direction X, while the crossbeam 111 moves in the second direction Y to drive the inkjet assembly 122 to move in the second direction Y. At this time, the inkjet assembly 122 can color the entire printed layer. The inkjet assembly 122 can move in the first direction X driven by the connecting mechanism 14 and in the second direction Y driven by the crossbeam 111, which can make the color of the entire printed layer more uniform, thereby improving the accuracy of the three-dimensional color printing of the 3D printing device 10.

[0046] Furthermore, the support mechanism 11 forms an I-shaped structure through the crossbeam 111 and the longitudinal beam assembly 112, which provides a better support effect for the entire support mechanism 11, thereby improving the overall structural stability of the 3D printing device 10. The provision of the first slider 16 and the second slider 17 can make the sliding connection between the crossbeam 111 and the first and second longitudinal beams 1121 and 1122 more stable and smooth, thereby improving printing quality and user experience.

[0047] In one embodiment of the present application, the inkjet assembly 122 further includes an inkjet head 1221 and a moisturizing assembly 1222. The inkjet head 1221 is disposed on the crossbeam 111. The moisturizing assembly 1222 is disposed at one end of the crossbeam 111 near the first longitudinal beam 1121 and on the same side of the crossbeam 111 as the inkjet head 1221. The moisturizing assembly 1222 abuts against the inkjet head 1221 when the inkjet head 1221 is not in operation.

[0048] Because air has a certain degree of dryness, the inkjet head 1221 is prone to drying out when exposed to air for a long time, which can clog the outlet of the inkjet head 1221, thereby affecting the inkjet head 1221's inkjet printing. Therefore, the provision of the moisturizing component 1222 can effectively moisturize the inkjet head 1221 when the inkjet head is not in operation, thereby effectively preventing the outlet of the inkjet head 1221 from clogging when the inkjet head 1221 is not in operation, thereby improving the smoothness of the inkjet head 1221's inkjet printing. In addition, because the moisturizing component 1222 is disposed at one end of the crossbeam 11 near the first longitudinal beam 121 and is disposed on the same side of the crossbeam 11 as the inkjet head 1221, when the printing component 121 moves to abut against the moisturizing component 1222, the inkjet component 122 is driven to move via the connecting component 14 to print the print layer. Therefore, the provision of the moisturizing component 1222 can also play a certain positioning role in the position of the printing component 121.

[0049] Specifically, the moisturizing assembly 1222 includes a support base 1223. The support base 1223 is L-shaped and comprises an integrally formed bottom wall 1225 and side walls 1224. The side walls 1224 are fixed to the crossbeam 111, and an elastic cover 1226 is provided on the bottom wall 1225. When the inkjet head 1221 moves to the support base 1223, at least the inkjet side of the inkjet head 1221 abuts against the elastic cover 1226. At this time, the elastic cover 1226 can abut against the inkjet head 1221, which can effectively seal the inkjet head 1221 to prevent the inkjet head 1221 from being exposed to the air and drying out, thereby clogging the outlet of the inkjet head 1221 and affecting the inkjet of the inkjet head 1221. Therefore, the elastic cover 1226 can abut against the inkjet head 1221 to moisturize the inkjet head 1221, thereby effectively improving the smoothness of the inkjet of the inkjet head 1221.

[0050] Furthermore, when the inkjet head 1221 is in operation, it will leave the support base 1223. At this time, there is no object supporting the bottom wall 1225 of the support base 1223, so the elastic cover 1226 will recover its deformation. In the absence of pressure, the elastic cover 1226 will protrude from the surface of the bottom wall 1225 of the support base 1223. In view of this, in one embodiment of the present application, a lever 1227 and a first elastic member 1229 are further provided on the support base 1223. The lever 1227 is provided on the bottom wall 1225 and is located on the side of the inkjet head 1221 facing away from the printing assembly 121. One end of the lever 1227 is connected to the elastic cover 1226, and the elastic cover 1226 also abuts against the bottom wall 1225. The other end of the lever 1227 abuts against the bottom wall 1225 via the first elastic member 1229. The elastic force of the first elastic member 1229 is greater than the elastic force of the elastic cover 1226 .

[0051] Optionally, the direction opposite to the ejection direction of the inkjet head 1221 is upward, and the ejection direction of the inkjet head 1221 is downward. When the inkjet head 1221 is working, the support seat 1223 is not subjected to force. Since the elastic force of the first elastic member 1229 is greater than the elastic force of the elastic cover 1226, the elastic cover 1226 is compressed under the action of the first elastic member 1229. At this time, the position of the other end of the lever 1227 is higher than the position of the elastic cover 1226, and the three remain stationary when the support seat 1223 is not subjected to force. When the inkjet head 1221 finishes its work and returns to the support seat 1223 for sealing and moisturizing, the inkjet head 1221 contacts the bottom wall 1225 of the support seat 1223 to apply downward pressure to the other end of the lever 1227. At this time, the other end of the lever 1227 moves downward, thereby compressing the first elastic member 1229. The elastic cover body 1226 is pulled upward by one end of the lever 1227, so that the elastic cover body 1226 restores its deformation to abut against the inkjet head 1221, thereby achieving sealing. Therefore, a lever 1227 and a first elastic member 1229 are provided, and the elastic force of the first elastic member 1229 is greater than the elastic force of the elastic cover 1226. When the inkjet head 1221 is in a working state, the elastic cover 1226 can be compressed, and the elastic cover 1226 will not protrude from the surface of the bottom wall 1225, which can facilitate the movement of the inkjet head 1221 to the support seat 1223. When the inkjet head 1221 returns to the bottom wall 1225, the elastic cover 1226 is brought into contact with the inkjet head 1221 to achieve sealing. There is no need for the user to manually assist the inkjet head 1221 to abut against the elastic cover 1226, thereby improving the user's operating experience.

[0052] Optionally, the elastic cover 1226 includes a cover and a second elastic member respectively abutting against the cover and the bottom wall 1225 .

[0053] In one embodiment of the present application, to accommodate the printed model, the 3D printing device 10 further includes a print table 15. The print table 15 is disposed below the printing assembly 121 and is capable of reciprocating in a first direction X and a third direction Z, respectively. The third direction Z is perpendicular to the first direction X and the second direction Y. The provision of the print table 15 effectively supports the printed model. Since printed models often have a certain volume, the reciprocating movement of the print table 15 in the first direction X and the third direction Z can reduce the volume of the print table 15 while ensuring that the printed model is completely contained within the print table 15, thereby reducing the overall size of the 3D printing device 10. Specifically, the reciprocating movement of the print table 15 in the first direction X increases the relative movement distance between the printing mechanism 12 and the print table 15 in the first direction X, thereby expanding the range of movement of the printing mechanism 12 in the first direction X and reducing the distance of the 3D printing device 10 in the first direction X. The reciprocating movement of the print table 15 in the third direction Z also reduces the height of the 3D printing device 10 in the third direction Z. Therefore, the provision of the print table 15 not only supports the printing layer and reciprocates along the first direction X and the third direction Z, but also reduces the distance between the 3D printing device 10 in the first direction X and the third direction Z, thereby reducing the volume of the 3D printing device 10. Furthermore, in order to drive the print table 15 to move along the first direction X and the third direction Z, in some embodiments, the 3D printing device 10 also includes a third drive member (not shown). By providing the third drive member, the print table 15 can be driven to move along the first direction X and the third direction Z respectively, eliminating the need for the user to manually move the print table 15, resulting in a higher level of automation and a better user experience.

[0054] Please refer to Figures 1 to 5. Figure 4 is a schematic three-dimensional structural diagram of an embodiment of the 3D printing device of the present application; Figure 5 is another schematic three-dimensional structural diagram of an embodiment of the 3D printing device of the present application.

[0055] In one embodiment of the present application, the drive mechanism 13 includes a first drive member 131 and a first transmission assembly 132. The first drive member 131 is disposed along the second direction Y on a side of the beam 111 facing away from the printing mechanism 12 and is spaced apart from the beam 111. The first transmission assembly 132 is in transmission connection with the first drive member 131 and the first and second sliders 16 and 17, respectively. Specifically, the first drive member 131 is capable of driving the first transmission assembly 132 to move. The movement of the first transmission assembly 132 drives the first and second sliders 16 and 17 to reciprocate in the second direction Y, thereby enabling the beam 111 to reciprocate in the second direction Y, thereby driving the printing assembly 121 and the inkjet assembly 122 to reciprocate in the second direction Y. Since the printed layer is typically three-dimensional, the reciprocating movement of the printing assembly 121 and the inkjet assembly 122 in the second direction Y not only ensures the three-dimensional appearance of the printed layer, but also reduces the height of the 3D printing device 10 in the second direction Y, thereby reducing the overall volume of the 3D printing device 10.

[0056] Furthermore, the first longitudinal beam 1121 is provided with a first support base 1123 and a second support base 1124 at both ends in the second direction Y, and the second longitudinal beam 1122 is provided with a third support base 1125 and a fourth support base 1126 at both ends in the second direction Y. The provision of the first support base 1123, the second support base 1124, the third support base 1125, and the fourth support base 1126 can make the entire support mechanism 11 more stable. When the 3D printing device 10 is placed on a plane, the first support base 1123, the second support base 1124, the third support base 1125, and the fourth support base 1126 can support the entire 3D printing device 10 by providing a certain supporting force to the first longitudinal beam 1121 and the second longitudinal beam 1122, thereby making the 3D printing device 10 more stable during printing.

[0057] The first support base 1123 is formed with a first notch 1131, the second support base 1124 is formed with a second notch 1132, the third support base 1125 is formed with a third notch 1133, and the fourth support base 1126 is formed with a fourth notch 1134. The drive mechanism 13 also includes a first transmission wheel assembly 133, a second transmission wheel assembly 134, a first conveyor belt 135, and a first motor 136. The first transmission wheel assembly 133 includes a first transmission wheel 1331 disposed in the first notch 1131 and a second transmission wheel 1332 disposed in the second notch 1132. The second transmission wheel assembly 134 includes a third transmission wheel 1333 disposed in the third notch 1133 and a fourth transmission wheel 1334 disposed in the fourth notch 1134. The first conveyor belt 135 is sequentially wound around the first transmission wheel 1331, the second transmission wheel 1332, the third transmission wheel 1333, and the fourth transmission wheel 1334. The first motor 136 is drivably connected to the first conveyor belt 135 to drive the first conveyor belt 135. Specifically, a first notch 1131 is formed on a surface of the first support base 1123 facing the second support base 1124, a second notch 1132 is formed on a surface of the second support base 1124 facing the first support base 1123, a third notch 1133 is formed on a surface of the third support base 1125 facing the fourth support base 1126, and a fourth notch 1134 is formed on a surface of the fourth support base 1126 facing the third support base 1125. The first transmission wheel 1331, the second transmission wheel 1332, the third transmission wheel 1333, and the fourth transmission wheel 1334 are respectively arranged in the first notch 1131, the second notch 1132, the third notch 1133 and the fourth notch 1134. At this time, the first notch 1131, the second notch 1132, the third notch 1133 and the fourth notch 1134 can respectively play a good shielding role for the first transmission wheel 1331, the second transmission wheel 1332, the third transmission wheel 1333 and the fourth transmission wheel 1334 to prevent some debris from being caught in the transmission process and causing the first transmission wheel group 133 and the second transmission wheel group 134 to become stuck. Therefore, the setting of this structure can improve the smoothness of the transmission of the first transmission wheel group 133 and the second transmission wheel group 134. The first conveyor belt 135 is sequentially wound around the first transmission wheel 1331, the second transmission wheel 1332, the third transmission wheel 1333 and the fourth transmission wheel 1334 to form the first conveyor belt 135 into two upper and lower belts. At this time, the first transmission wheel 1331, the second transmission wheel 1332, the third transmission wheel 1333 and the fourth transmission wheel 1334 divide the first conveyor belt 135 into a first sub-conveyor belt 1351, a second sub-conveyor belt 1352 and a third sub-conveyor belt 1353.Specifically, the first sub-conveyor belt 1351 is located between the first transmission wheel 1331 and the second transmission wheel 1332, and the first sub-conveyor belt 1351 extends along the second direction Y; the second sub-conveyor belt 1352 is located between the second transmission wheel 1332 and the third transmission wheel 1333, and the second sub-conveyor belt 1352 extends along the first direction X; the third sub-conveyor belt 1353 is located between the third transmission wheel 1333 and the fourth transmission wheel 1334, and the third sub-conveyor belt 1353 extends along the second direction Y, and the movement direction of the third sub-conveyor belt 1353 is opposite to that of the first sub-conveyor belt 1351. The movement of the first sub-conveyor belt 1351 and the third sub-conveyor belt 1353 drives the first slider 16 and the second slider 17 to slide back and forth in the second direction Y. This, in turn, allows the crossbeam 111 to slide back and forth in the second direction Y, thereby driving the printing assembly 121 and the inkjet assembly 122 to slide back and forth in the second direction Y. This allows the printed layer produced by the printing assembly 121 to have a three-dimensional appearance, and the inkjet assembly 122 to color the printed layer more evenly, resulting in the printed layer produced by the 3D printing device 10 having a colorful and more three-dimensional appearance. Furthermore, since the printing assembly 121 and the inkjet assembly 122 can slide back and forth in the second direction Y, the distance between the printing mechanism 12 and the printing table 15 can be reduced, thereby reducing the height of the entire 3D printing device 10 in the second direction Y and thereby reducing the overall volume of the 3D printing device 10. Furthermore, the first motor 136 can drive the first conveyor belt 135 to move, which in turn drives the printing mechanism 12 to move in the second direction Y. The first motor 136 can achieve automation and intelligence in controlling the movement of the first conveyor belt 135, facilitating user operation and improving the user experience.

[0058] Optionally, the first motor 136 may be a DC motor, an asynchronous motor, a synchronous motor, or some other type of motor, which is not limited here.

[0059] In one embodiment of the present application, a first buckle 161 is provided at one end of the first slider 16 facing the first conveyor belt 135, and a second buckle 162 is provided at one end of the second slider 17 facing the first conveyor belt 135. Part of the first conveyor belt 135 is located within the first buckle 161 and the second buckle 162. Specifically, the first buckle 161 is provided at one end of the first slider 16 facing the first sub-conveyor belt 1351. The upper belt of the first sub-conveyor belt 1351 is passed through the first buckle 161. At this time, the first buckle 161 can play a certain role in limiting the position of the first sub-conveyor belt 1351, so as to prevent the upper belt of the first sub-conveyor belt 1351 from sagging under its own weight and contacting the lower belt, thereby improving the smoothness of the transmission of the first sub-conveyor belt 1351, and further improving the smoothness of the transmission of the first conveyor belt 1355. A second buckle 162 is provided on the end of the second slider 17 that faces the third sub-conveyor belt 1353. The belt above the third sub-conveyor belt 1353 is threaded through the second buckle 162. The second buckle 162 acts as a position limiter for the third sub-conveyor belt 1353, preventing the belt above the third sub-conveyor belt 1353 from sagging under its own weight and coming into contact with the belt below. This improves the smoothness of the transmission of the third sub-conveyor belt 1353 and, in turn, the smoothness of the transmission of the first conveyor belt 135. Therefore, the provision of the first buckle 161 and the second buckle 162 effectively limits the position of the first conveyor belt 135, thereby ensuring the smoothness of the transmission of the first conveyor belt 135.

[0060] In one embodiment of the present application, the crossbeam 111 includes a first surface 1111 and a second surface 1112 disposed opposite each other along a second direction Y. The printing assembly 121 and the inkjet assembly 122 are disposed on the first surface 1111. The drive mechanism 13 also includes a second drive member 137 and a second transmission assembly 138. The second drive member 137 is disposed on the second surface 1112 of the crossbeam 111. The second transmission assembly 138 is disposed on the first surface 1111 of the crossbeam 111. The printing assembly 121 is disposed on the second transmission assembly 138, and the second transmission assembly 138 is configured to drive the printing assembly 121 to move along the first direction X. The provision of the second drive member 137 and the second transmission assembly 138 enables the movement of the printing assembly 121 in the first direction X to be more labor-efficient. Furthermore, the second driving member 137 and the printing component 121 and the inkjet component 122 are arranged back to back on the beam 111. The second driving member 137 and the printing component 121 and the inkjet component 122 will not interfere with each other. At the same time, it can also provide space for the printing component 121 and the inkjet component 122 to move in the first direction X, thereby reducing the space in the first direction X while ensuring the three-dimensional effect of the printed layer, and thus reducing the volume of the 3D printing device 10.

[0061] Specifically, the second transmission assembly 138 includes a third transmission wheel assembly 1381 and a second conveyor belt 1383. The third transmission wheel assembly 1381 is disposed on the first surface 1111 of the crossbeam 111 and includes two fifth transmission wheels 1382 spaced apart along the first direction X. The second conveyor belt 1383 is respectively wound around the two fifth transmission wheels 1382. The second conveyor belt 1383 is drivingly connected to the second driving member 137 to drive the second conveyor belt 1383 in the first direction X. Specifically, the second drive member 137 drives the second conveyor belt 1383 to move in the first direction X. The movement of the second conveyor belt 1383 in the first direction X drives the printing assembly 121 in the first direction X, allowing the printing assembly 121 to print a print layer. After the print layer is printed, the second conveyor belt 1383 drives the printing assembly 121 toward the side near the inkjet assembly 122, so that the printing assembly 121 and the inkjet assembly 122 are connected via the connecting mechanism 14. The printing assembly 121 then drives the inkjet assembly 122 to spray ink on the print layer to color the print layer, thereby achieving color printing of the print layer. By driving the printing assembly 121 in the first direction X by the second drive member 137, the second conveyor belt 1383, and the third transmission wheel assembly 1381, the movement of the printing assembly 121 can be automated and intelligent, eliminating the need for manual operation by the user and providing a better user experience.

[0062] Optionally, the second driving member 137 may be a DC motor, an asynchronous motor, a synchronous motor, or some other type of motor, which is not limited here.

[0063] In one embodiment of the present application, the 3D printing device 10 further includes a guide rail 18. The guide rail 18 is disposed on the first surface 1111 of the crossbeam 111, extending along a first direction X and spaced apart from the second transmission assembly 138 along a third direction Z. The guide rail 18 is used to guide the movement of the printing mechanism 12 along the first direction X. The third direction Z is perpendicular to the first direction X and the second direction Y. Therefore, the guide rail 18 can limit the movement of the printing mechanism 12 by guiding the movement of the printing mechanism 12 in the first direction X, thereby ensuring more stable movement of the printing mechanism 12 in the first direction X.

[0064] Please refer to FIG. 1 to FIG. 6 , FIG. 6 is an enlarged structural diagram of a partial structure of B in FIG. 1 .

[0065] In one embodiment of the present application, the printing assembly 121 further includes a print head 1211 and a third slider 1212. The third slider 1212 is disposed at the end of the print head 1211 facing the guide rail 18 and is slidably connected to the guide rail 18. Specifically, since the print head 1211 is often provided with other structures, a direct sliding connection between the print head 1211 and the guide rail 18 may result in unstable connection. Therefore, the print head 1211 is slidably connected to the guide rail 18 via the third slider 1212. This not only increases the contact area between the print head 1211 and the guide rail 18 to improve connection stability, but also provides the third slider 1212 with a good auxiliary effect in the movement of the print head 1211 on the guide rail 18 along the first direction X, thereby making the entire sliding process smoother.

[0066] Optionally, in an embodiment of the present application, the print head 1211 utilizes an FDM extruder head for extruding a heated thermoplastic filament fluid material, which is a key component of FDM printing. The inkjet head 1221 utilizes a UV inkjet head for spraying UV ink onto an object surface, which is then irradiated with UV light, etc., to instantly cure the ink, thereby forming a colorful image layer. Of course, in some other embodiments, the print head 1211 may utilize other extruder heads, and the inkjet head 1221 may utilize other inkjet heads, and these are not limiting here.

[0067] Furthermore, the inkjet assembly 122 also includes a fourth slider 1213. The fourth slider 1213 is disposed at the end of the inkjet head 1221 facing the guide rail 18 and is slidably connected to the guide rail 18. Specifically, since the inkjet head 1221 is often provided with other structures, a direct sliding connection between the inkjet head 1221 and the guide rail 18 may result in unstable connection. Therefore, the inkjet head 1221 is slidably connected to the guide rail 18 via the fourth slider 1213. This not only increases the contact area between the inkjet head 1221 and the guide rail 18 to improve connection stability, but also effectively assists the movement of the inkjet head 1221 on the guide rail along the first direction X, thereby making the entire sliding process smoother.

[0068] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A 3D printing device, characterized in that, The 3D printing device comprises: Support mechanism; A printing mechanism, arranged on the supporting mechanism, the printing mechanism comprising a printing component and an inkjet component; A driving mechanism, disposed on the supporting mechanism and drivingly connected to the printing assembly, for driving the printing assembly to print; and a connecting mechanism, disposed between the printing assembly and the inkjet assembly, for connecting the printing assembly and the inkjet assembly; Wherein, before the inkjet assembly prints, the driving mechanism drives the printing assembly to move toward the inkjet assembly, so that the printing assembly is connected to the inkjet assembly through the connecting mechanism.

2. The 3D printing device according to claim 1, wherein, The connecting mechanism comprises: A first magnetic member is disposed on a side of the inkjet assembly facing the printing assembly; A second magnetic member is disposed on a side of the printing mechanism facing the inkjet assembly; After the printing layer is printed, the driving mechanism drives the printing component to move toward the inkjet component until the first magnetic component is adsorbed and connected with the second magnetic component.

3. The 3D printing device according to claim 2, characterized in that, The first magnetic component includes an electromagnet, and the second magnetic component includes a steel plate. When the printing layer is printed, the electromagnet is powered on to magnetically attract the steel plate. When the inkjet component completes inkjet printing on the printing layer, the electromagnet is powered off to separate the inkjet component from the steel plate.

4. The 3D printing device according to claim 1, characterized in that, The supporting mechanism comprises: A crossbeam extending along a first direction, wherein the printing assembly and the inkjet assembly are disposed on the crossbeam and can move relative to the crossbeam along the first direction; The longitudinal beam group includes a first longitudinal beam and a second longitudinal beam spaced apart along the first direction, the first longitudinal beam and the second longitudinal beam both extend along the second direction, the first direction and the second direction are vertically arranged, the two ends of the cross beam are respectively movably connected to the first longitudinal beam and the second longitudinal beam, and the cross beam can slide back and forth along the second direction.

5. The 3D printing device according to claim 4, characterized in that, The inkjet assembly comprises: An inkjet head is arranged on the crossbeam; The moisturizing component is arranged at one end of the cross beam close to the first longitudinal beam and is arranged on the same side of the cross beam as the inkjet head. The moisturizing component abuts against the inkjet head when the inkjet head is not working.

6. The 3D printing device according to claim 3, characterized in that, The 3D printing device also includes: A printing table is disposed below the printing assembly and can reciprocate along the first direction and a third direction, wherein the third direction is perpendicular to the first direction and the second direction.

7. The 3D printing device according to claim 3, characterized in that, The 3D printing device also includes: A first slider and a second slider, both ends of the cross beam are slidably connected to the first longitudinal beam and the second longitudinal beam through the first slider and the second slider respectively.

8. The 3D printing device according to claim 7, characterized in that, The driving mechanism comprises: A first driving member is arranged along the second direction on a side of the beam away from the printing mechanism and is spaced apart from the beam; The first transmission assembly is respectively connected to the first driving member, the first slider and the second slider.

9. The 3D printing device according to claim 8, wherein, The two ends of the first longitudinal beam in the second direction are respectively provided with a first support seat and a second support seat. The two ends of the second longitudinal beam in the second direction are respectively provided with a third support seat and a fourth support seat. The first support seat is formed with a first notch, the second support seat is formed with a second notch, the third support seat is formed with a third notch, and the fourth support seat is formed with a fourth notch. The driving mechanism further includes: A first transmission pulley set, including a first transmission pulley disposed in the first notch and a second transmission pulley disposed in the second notch; A second transmission pulley set, including a third transmission pulley disposed in the third notch and a fourth transmission pulley disposed in the fourth notch; A first conveyor belt, sequentially wound around the first transmission pulley, the second transmission pulley, the third transmission pulley and the fourth transmission pulley; A first motor, drivingly connected to the first conveyor belt to drive the first conveyor belt to move.

10. The 3D printing device according to claim 9, characterized in that, One end of the first slider facing the first conveyor belt is provided with a first bent buckle, and one end of the second slider facing the first conveyor belt is provided with a second bent buckle. A part of the first conveyor belt is located within the first bent buckle and the second bent buckle.

11. The 3D printing device according to claim 3, characterized in that, The cross beam includes a first surface and a second surface arranged opposite to each other in the second direction. The printing assembly and the inkjet assembly are disposed on the first surface. The driving mechanism further includes: A second driving member, disposed on the second surface of the cross beam; A second transmission assembly, disposed on the first surface of the cross beam. The printing assembly is disposed on the second transmission assembly. The second transmission assembly is used to drive the printing assembly to move along the first direction.

12. The 3D printing device according to claim 11, characterized in that, The second transmission assembly includes: A third transmission pulley set, disposed on the first surface of the cross beam. The third transmission pulley set includes two fifth transmission pulleys spaced apart in the first direction; A second conveyor belt, respectively wound around the two fifth transmission pulleys. The second conveyor belt is drivingly connected to the second driving member to drive the second conveyor belt to move in the first direction.

13. The 3D printing device according to claim 11, wherein, The 3D printing device further includes: A guide rail, disposed on the first surface of the cross beam. The guide rail extends along the first direction and is spaced apart from the second transmission assembly in the third direction. The guide rail is used to guide the movement of the printing mechanism along the first direction; Wherein, the third direction is perpendicular to the first direction and the second direction.

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