Three-dimensional forming equipment

Abstract

The utility model discloses three-dimensional forming equipment, which integrates printing and cleaning, does not need to move a model, reduces the number of equipment and occupied space, and ensures printing quality and convenience. According to the main technical scheme, the three-dimensional forming equipment comprises a printing mechanism which comprises a printing platform and is used for printing a model on the printing platform; and the cleaning mechanism comprises a containing inner cavity, the printing platform is at least contained in the containing inner cavity, and the cleaning mechanism is used for providing cleaning liquid for the containing inner cavity so as to clean the model. The 3D printer is mainly used for 3D printing.

Description

Technical Field

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

[0002] In order to make the printed model present a better printing effect or present rich colors, in the prior art, a nozzle is used to spray resin onto the printing platform, and light is combined to perform photocuring, and then a layer of model is formed, and then the resin is sprayed on the formed model, layer by layer, to achieve photocuring molding. After the model is formed, uncured resin will adhere to the surface, and the model needs to be cleaned after printing.

[0003] In the prior art, it is usually necessary to remove the model from the printing platform and move it to a special model cleaning machine for model cleaning. For example, the patent with publication number CN220295312U discloses a model cleaning device, including a cleaning barrel, and the storage space of the cleaning barrel is used to hold cleaning liquid and models for model cleaning. The model cleaning machine is independent of the stereo molding setting, resulting in an increase in the number of equipment and a large space occupied. In addition, the model needs to be picked up and moved manually, which is cumbersome to operate and easily contaminates the model. Utility Model Content

[0004] In view of this, in order to solve at least one of the aforementioned technical problems, the utility model provides a three-dimensional forming device.

[0005] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0006] On the one hand, the embodiment of the utility model provides a three-dimensional forming device, comprising:

[0007] A printing mechanism, the printing mechanism includes a printing platform, and the printing mechanism is used to print the model on the printing platform;

[0008] The cleaning mechanism comprises a containing inner cavity, wherein the containing inner cavity at least contains the printing platform, and the cleaning mechanism is used for providing cleaning liquid into the containing inner cavity to clean the model.

[0009] The three-dimensional molding equipment proposed in the utility model combines printing and cleaning into one, and there is no need to move the model, thereby reducing the number of equipment and the space occupied, and ensuring the printing quality and convenience. In the prior art, it is usually necessary to remove the model from the printing platform and move it to a special model cleaning machine for cleaning. The model cleaning machine is independent of the three-dimensional molding setting, which increases the number of equipment, occupies a large space, and requires manual picking and moving of the model, which is cumbersome to operate and easily contaminates the model. Compared with the prior art, in the present application document, the three-dimensional molding equipment has both printing and cleaning functions. After the model is printed, the cleaning function can be activated to clean the model. Printing and cleaning are performed in the same space, which greatly reduces the space occupied by the independent printer and cleaning machine, and there is no need to manually move the model. No human participation is required during the printing process, which improves the intelligence of printing, and also avoids the operator from contacting the uncured resin on the model, avoiding contamination and damage to the model. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic cross-sectional structure diagram of a three-dimensional forming device provided by an embodiment of the utility model at a first viewing angle;

[0011] Figure 2 A schematic cross-sectional structure diagram of a three-dimensional forming device provided by an embodiment of the utility model at a second viewing angle;

[0012] Figure 3 A schematic cross-sectional structure diagram of a three-dimensional forming device provided by an embodiment of the utility model at a third viewing angle;

[0013] Figure 4 A schematic diagram of the three-dimensional structure of a three-dimensional forming device provided in an embodiment of the utility model;

[0014] Figure 5 A schematic diagram of the structure of a planar driving component in a three-dimensional forming device provided by an embodiment of the utility model;

[0015] Figure 6 A schematic diagram of the structure of a lifting assembly, a printing platform and a rotating drive member in a three-dimensional molding device provided by an embodiment of the utility model;

[0016] Figure 7 A structural schematic diagram of a partial structure of a cleaning mechanism provided by an embodiment of the utility model at a first viewing angle;

[0017] Figure 8 A structural schematic diagram of a partial structure of a cleaning mechanism provided by an embodiment of the utility model at a second viewing angle;

[0018] Fig. 9A schematic structural diagram of a partial structure of a cleaning mechanism provided in an embodiment of the utility model at a third viewing angle. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the present invention, the specific implementation method, structure, characteristics and effects of the three-dimensional forming equipment proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] On the one hand, if Figure 1-9 As shown, the embodiment of the utility model provides a three-dimensional forming device, including:

[0021] A printing mechanism 100, the printing mechanism 100 includes a printing platform 120, and the printing mechanism 100 is used to print a model on the printing platform 120;

[0022] The cleaning mechanism 200 includes an accommodating inner cavity 201 , and the accommodating inner cavity 201 at least accommodates the printing platform 120 . The cleaning mechanism 200 is used to provide cleaning liquid into the accommodating inner cavity 201 to clean the model.

[0023] The printing platform 120 is a carrier platform of the printing mechanism 100, which is used to connect and support the model. When in use, the printing platform 120 can be set upward, that is, stacked upward layer by layer to form a model. Alternatively, the printing platform 120 can be set downward, that is, stacked downward layer by layer to form a model. The position of the printing platform 120 can be fixed relative to the accommodating space 201, and three-dimensional molding is achieved by moving other structures of the printing mechanism 100. In an embodiment where the printing platform 120 is stationary, the printing platform 120 is always located in the accommodating space 201. Alternatively, the printing platform 120 can be moved relative to the accommodation space 201. The printing platform 120 can always be located in the accommodation space 201, or can be located outside the accommodation space 201 as needed, that is, the printing platform 120 is located in the accommodation space 201 during at least part of the printing process, and during the other part of the printing process, the printing platform 120 can no longer be in the accommodation space 201, and then cooperate with other structures of the printing mechanism 100 to print. However, it is understandable that when the model needs to be cleaned after printing, the printing platform 120 needs to be moved to the accommodation cavity 201. During the model cleaning process, the position of the printing platform 120 should ensure that the entire model is located in the accommodation cavity 201.

[0024] The storage space 201 may be a selectively open or closed space, such as a structure on the cleaning mechanism 200 where the storage space 201 includes a door, through which the storage space 201 can be opened or closed, thereby preventing the cleaning liquid from leaking out and facilitating the picking up of the model. Alternatively, the storage space 201 may also be a continuously open space, such as an opening above the storage space 201, through which the printing platform 120 can cooperate with other structures of the printing mechanism 100 for printing, thereby reducing the volume of the components located in the storage space 201, reducing the size of the storage space 201, increasing space utilization, and reducing the consumption of cleaning liquid.

[0025] The shapes of the printing platform 120 and the containing inner cavity 201 can be various. For example, in one embodiment, the printing platform 120 is a circular platform, and the containing inner cavity 201 is an approximately cylindrical inner cavity. Or in another embodiment, the printing platform 120 is a square platform, and the containing inner cavity 201 is an approximately square columnar inner cavity. The inner wall of the containing inner cavity 201 and the outer edge of the printing platform 120 can be separated by a small distance, such as 2 mm, 3 mm, 1 cm, etc. The printing platform 120 can move in the containing inner cavity 201, and the volume of the containing inner cavity 201 will not be too large to avoid occupying too much space. In addition, the gap between the inner wall of the containing inner cavity 201 and the printing platform 120 is also used for the discharge of the cleaning liquid. In the embodiment where the printing platform 120 does not move, the edge of the printing platform 120 can be connected to the inner wall of the containing inner cavity 201, or in other words, the surface of the printing platform 120 in contact with the model directly serves as the bottom surface of the containing inner cavity 201, which can be set as needed.

[0026] After the model is printed on the printing platform 120, the printing platform 120 can automatically move the model to the designated position without the intervention of an operator, or the printing platform 120 itself is already in the designated position, and then the model is cleaned. In an embodiment in which the printing platform 120 is fixed, the model can be cleaned after other structures of the printing mechanism 100 are moved out of the accommodating cavity 201. The cleaning mechanism 200 can provide cleaning liquid to the accommodating cavity 201 by spraying, so as to clean the excess uncured resin on the model. When cleaning the model, the model does not need to be manually picked up from the printing platform 120 or the printing platform 120 does not need to be manually moved, so that printing and cleaning can be completed at one time, which improves the user experience and reduces the number of equipment.

[0027] The three-dimensional molding device proposed in the embodiment of the utility model combines printing and cleaning into one, and there is no need to move the model, thereby reducing the number of equipment and the space occupied, and ensuring the printing quality and convenience. In the prior art, it is usually necessary to remove the model from the printing platform, or move the entire printing platform and the model together to a special model cleaning machine to clean the model. The model cleaning machine is independent of the three-dimensional molding setting, which leads to an increase in the number of equipment, a large space occupied, and requires manual picking and / or moving of the model, which is cumbersome to operate and easily contaminates the model. Compared with the prior art, in the present application document, the three-dimensional molding device has both printing and cleaning functions. After the model is printed, the cleaning function can be activated to clean the model. Printing and cleaning are performed in the same space, which greatly reduces the space occupied by the independent printer and cleaning machine, and there is no need to manually move the model. No human participation is required during the printing process, which improves the intelligence of printing, and also avoids the operator from contacting the uncured resin on the model, and avoids the model from being contaminated and damaged.

[0028] The printing mechanism 100 and the cleaning mechanism 200 can each be provided with a separate support structure to ensure that the positions are relatively fixed during the printing and cleaning processes. Alternatively, in some embodiments, the three-dimensional forming device includes a support body 400, and the printing mechanism 100 and the cleaning mechanism 200 are both connected to the support body 400. In the following embodiments, the support relationship of each component will be described in conjunction with the support body 400, but it can be understood that the printing mechanism 100 and the cleaning mechanism 200 can also have other fixing methods.

[0029] In one embodiment, the printing mechanism 100 further includes a lifting assembly 110 and a print head 130, and the printing platform 120 is arranged opposite to the print head 130. The lifting assembly 110 is connected to one of the printing platform 120 and the print head 130, and the lifting assembly 110 is used to drive the printing platform 120 or the print head 130 to move so that the printing platform 120 and the print head 130 are close to or away from each other.

[0030] The print head 130 is used to spray liquid resin onto the printing platform 120. The resin can be a single resin or a mixture of multiple resins, such as the same resin of different colors, resins of different materials, or a mixture of other materials and resins, such as a mixture of solid powder and resin. The resin is a photosensitive resin that can be cured under light of a specified wavelength or color. The resin and the model are stacked layer by layer to achieve three-dimensional molding. To achieve layer-by-layer printing, the print head 130 needs to be away from the printing platform 120 by the thickness of a layer of model after printing one layer, and then the next layer of resin can be sprayed and cured. More specifically, taking the direction of the actual use of the three-dimensional molding equipment as an example, in order to realize the movement of the print head 130 away from the printing platform 120, the printing platform 120 can be actively moved, while the print head 130 is fixed, and the lifting assembly 110 is connected to the printing platform 120, driving the printing platform 120 to move relative to the accommodating cavity 201, such as moving close to the print head 130 to the initial printing position, the print head 130 can spray the first layer of resin on the printing platform 120, after the resin is cured, the printing platform 120 moves down to the height of one layer of the model, and then the print head 130 can spray the second layer of resin on the formed model, and the second layer of the model is formed after the resin is cured, and so on.

[0031] Alternatively, the printing platform 120 may be fixed, the printing platform 120 may be located near the bottom of the accommodating inner cavity 201, and the print head 130 may actively move, the lifting component 110 may be connected to the print head 130, and may be directly connected to the print head 130 or indirectly connected to the print head 130, the lifting component 110 may drive the print head 130 to move relative to the accommodating inner cavity 201, such as moving close to the printing platform 120 to an initial printing position, the print head 130 may spray a first layer of resin on the printing platform 120, and then move upward to the height of one layer of the model, and then print the second layer of the model, and so on.

[0032] In one embodiment, the printing mechanism 100 further includes a leveling sensor, which is connected to the print head 130, and is used to generate a detection signal when the print head 130 contacts or approaches the printing platform 120. The leveling sensor can be a contact sensor, such as a touch sensor, or a non-contact sensor, such as an infrared distance detector. The leveling sensor is used to detect the actual height and surface shape of the upper surface of the printing platform 120 before printing, so that the print head 130 can maintain a consistent distance from the printing platform 120 during the printing of a layer of the model. It can be understood that the leveling sensor is used to generate a detection signal when the print head 130 approaches the printing platform 120, and can generate a detection signal when the print head 130 is a preset distance away from the printing platform 120.

[0033] The printing platform 120 and the print head 130 can only move in a direction close to or away from each other. Alternatively, in order to achieve the diversification of the printed models, in one embodiment, the printing mechanism 100 further includes a planar drive component 140. The planar drive component 140 is used to enable the print head 130 and the printing platform 120 to move relative to each other in the horizontal direction, and the planar drive component 140 can be connected to either the print head 130 or the printing platform 120.

[0034] For example, the lifting assembly 110 is connected to the printing platform 120, and the plane driving assembly 140 is connected to the print head 130. The plane driving assembly 140 is used to drive the print head 130 to move in a plane parallel to the printing platform 120. That is, the print head 130 moves in the horizontal direction to spray the resin. After one layer of the model is cured, the printing platform 120 moves downward, and then the second layer of the model can be printed.

[0035] Alternatively, the lifting assembly 110 is connected to the plane driving assembly 140, and the plane driving assembly 140 is connected to the print head 130. The lifting assembly 110 is used to drive the plane driving assembly 140 and the print head 130 to move closer to or away from the printing platform 120, and the plane driving assembly 140 is used to drive the print head 130 to move in a plane parallel to the printing platform 120. That is, the print head 130 moves in the horizontal direction to spray the resin. After one layer of the model is cured, the print head 130 and the plane driving assembly 140 move upward together, and then the second layer of the model can be printed.

[0036] Alternatively, the lifting assembly 110 is connected to the print head 130, and the plane driving assembly 140 is connected to the printing platform 120, and the plane driving assembly 140 is used to drive the printing platform 120 to move in a plane parallel to the printing platform 120. That is, the printing platform 120 moves in the horizontal direction, and the print head 130 sprays the resin through the movement of the printing platform 120. After one layer of the model is cured, the print head 130 moves upward, and then the second layer of the model can be printed.

[0037] The plane drive assembly 140 can be driven in a plane in a variety of ways. For example, in one embodiment, the plane drive assembly 140 includes an X-axis drive unit 141 and a Y-axis drive unit 142. The Y-axis drive unit 142 is fixed, and the X-axis drive unit 141 is connected to the print head 130 or the printing platform 120 to drive the print head 130 to move in the X-axis direction. The Y-axis drive unit 142 is connected to the X-axis drive unit 141 to drive the X-axis drive unit 141 to move in the Y-axis direction. Alternatively, the X-axis drive unit 141 can be fixed, and the Y-axis drive unit 142 can be connected to the print head 130 or the printing platform 120, so that the print head 130 or the printing platform 120 can move freely in the plane by moving the print head 130 in the X-axis direction and the Y-axis direction.

[0038] Taking the implementation in which the X-axis drive unit 141 is connected to the print head 130 or the printing platform 120 as an example, there can be two Y-axis drive units 142, and the two ends of the extension direction of the X-axis drive unit 141 are respectively connected to the two Y-axis drive units 142, which can increase the stability of the movement of the X-axis drive unit 141, making it less likely to vibrate, thereby ensuring the accuracy of the position of the print head 130 or the printing platform 120.

[0039] In one embodiment, the X-axis driving unit 141 includes at least one first driving member 1411, a first guide rail 1412 and at least one first transmission member, the print head 130 is slidably connected to the first guide rail 1412, the first transmission member is respectively connected to the first driving member 1411 and the print head 130, and the first transmission member includes a conveyor belt or a screw. And / or,

[0040] The Y-axis driving unit 142 includes a second driving member 1421, a second guide rail 1422, and a second transmission member 1423. The X-axis driving unit 141 is slidably connected to the second guide rail 1422. The second transmission member 1423 is respectively connected to the second driving member 1421 and the X-axis driving unit 141. The second transmission member 1423 includes a conveyor belt or a screw rod. The driving mode of the X-axis driving unit 141 and the Y-axis driving unit 142 can be the rotation of the screw rod, driven by a thread, or pulled by driving the conveyor belt to move.

[0041] This application provides a more specific implementation as follows: Figure 5As shown, the X-axis driving unit 141 includes two first driving members 1411, a first guide rail 1412, two first transmission members (not shown), a first roller steering member 1413, a second roller steering member 1414, a third roller steering member 1415 and a fourth roller steering member 1416. There are two Y-axis driving units 142, and the Y-axis driving units 142 include a second driving member 1421, a second guide rail 1422, a second transmission member 1423 and a nut 1424. At least two rollers are arranged in the first roller steering member 1413, the second roller steering member 1414, the third roller steering member 1415 and the fourth roller steering member 1416. The first transmission member is a conveyor belt, and the first guide rail 1412 includes at least one slide rail, such as two parallel and spaced slide rails, which can be an optical axis. The first guide rail 1412 extends in the X-axis direction, and the print head 130 is slidably connected to the first guide rail 1412 through an additional connection structure such as a support frame, or can also be directly slidably connected to the first guide rail 1412. The first roller steering member 1413 and the fourth roller steering member 1416 are respectively connected to the two ends of the first guide rail 1412. The second transmission member 1423 is a screw rod. The second guide rail 1422 can be a slide bar, and the second guide rail 1422 extends in the Y-axis direction perpendicular to the X-axis direction. The second guide rail 1422 can be connected to the support body 400, such as by bolt connection. The nut 1424 is threadedly connected to the second transmission member 1423, and the first roller steering member 1413 and the fourth roller steering member 1416 are respectively connected to the nuts 1424 of the two Y-axis drive units 142, and the first roller steering member 1413 and the fourth roller steering member 1416 are slidably connected to the second guide rail 1422 through an additional connection structure such as a support frame or directly. The second roller steering member 1414 and a first driving member 1411 are fixed to the outside of the end of a second guide rail 1422, and the third roller steering member 1415 and another first driving member 1411 are fixed to the outside of the end of another second guide rail 1422. One end of one of the two first transmission members is connected to the first side of the print head 130, and then is sequentially wound around a roller of the first roller steering member 1413, a roller of the second roller steering member 1414, an output shaft of the first driving member 1411 adjacent to the second roller steering member 1414, a roller of the third roller steering member 1415, and a roller of the fourth roller steering member 1416, and then connected to the second side of the print head 130 opposite to the first side. The other first transmission member adopts a similar winding method, which will not be repeated.

[0042] In the above-mentioned embodiment, the second roller steering member 1414, the third roller steering member 1415 and the two first driving members 1411 are fixed separately, which reduces the driving burden of the Y-axis driving unit 142, makes the movement of the print head 130 faster, and can reduce mechanical loss. The use of two first driving members 1411 can reduce the driving burden of a single first driving member 1411, and can reduce the selection difficulty, cost and occupied space of the first driving member 1411. During the driving process, the second driving member 1421 drives the second transmission member 1423 to rotate, and then the thread action pushes the nut 1424 to drive the first guide rail 1412 and the print head 130 to move in the Y direction. The two first driving members 1411 synchronously drive the first transmission member to pull the print head 130 in the X-axis direction in the same direction, thereby realizing the free movement of the print head 130 in the XY plane.

[0043] The planar drive assembly 140 may also be other structures, such as a core xy structure, which includes at least two drive motors, at least one of which can drive a driven component such as a print head 130 to move in a first direction, and at least another drive motor can drive a driven component such as a print head 130 to move in a second direction, the first direction and the second direction being perpendicular. It can be understood that the core xy structure is a common structure of a 3D printer, and this application will not further explain it.

[0044] In one embodiment, if Figure 6 As shown, the lifting assembly 110 includes a lifting power body and a cantilever 111, and the lifting power body is located outside the accommodating inner cavity 201. The cleaning mechanism 200 includes a cleaning body 210, and the cleaning body 210 includes an accommodating inner cavity 201. The cleaning body 210 is provided with a lifting and giving way opening connected to the accommodating inner cavity 201, and the lifting and giving way opening extends at least along the moving direction of the cantilever 111. The first end of the cantilever 111 is connected to the lifting power body, and the second end of the cantilever 111 is connected to the printing platform 120 or the print head 130. The lifting power body is used to drive the cantilever 111 to move at least in the lifting and giving way opening, so that the printing platform 120 and the print head 130 are close to or away from each other.

[0045] The cleaning body 210 may be a barrel-shaped structure, and a support foot 291 is provided below the cleaning body 210, and the cleaning body 210 is used to be fixed on the support body 400 through the support foot 291. The lifting power body may further include a support body 112, a lifting drive 113, a screw 114 and a third guide rail 115. The support body 112 may be a metal profile, and the support body 112 is fixed to the support body 400. The third guide rail 115 is connected to the support body 112 and extends in the Z axis or the vertical direction. The lifting drive 113 is connected to the support body 112 and is located at one end of the support body 112, and the screw 114 is connected to the lifting drive 113. The first end of the cantilever 111 is screwed to the screw 114 directly or through an additional nut. The cantilever 111 is directly or slidably connected to the third guide rail 115 through a slider. The lifting drive 113 is used to drive the screw 114 to rotate, so as to drive the cantilever 111 to rise and fall through the pushing action of the thread. The lifting power body is located outside the accommodating inner cavity 201, so as to prevent the lifting power body from being contaminated or affected by the cleaning liquid, ensure the accuracy of the transmission, and reduce the volume of the cleaning body 210 to avoid the waste of the cleaning liquid. The cantilever 111 passes through the lifting and disengaging port, and can be connected to the printing platform 120 or the print head 130. The lifting and disengaging port provides a moving space for the lifting and lowering of the cantilever 111. It can be understood that during the printing or cleaning process, the cantilever 111 can also be moved out of the lifting and disengaging port, which will be further explained in conjunction with other embodiments below.

[0046] In one embodiment, if Figure 7-9 As shown, the cleaning mechanism 200 further includes a first opening and closing portion 220, which is movably connected to the cleaning body 210, and the positions of the first opening and closing portion 220 include a first open position and a first closed position, and the first opening and closing portion 220 is used to move under the action of an external force to switch between the first open position and the first closed position. In the first open position, the first opening and closing portion 220 does not completely cover or does not cover the lifting and disposing opening, and in the first closed position, the first opening and closing portion 220 covers the lifting and disposing opening.

[0047] The first opening and closing part 220 is in the first open position during the printing process to make way for the movement of the cantilever 111, and is in the closed position during the cleaning process to prevent the cleaning liquid from splashing onto the lifting power body during the cleaning process, thereby preventing the lifting power body from being contaminated. The movement of the first opening and closing part 220 can be manually operated, or a driving mechanism can be set to automatically close the first opening and closing part 220 before the model needs to be cleaned. The shape of the first opening and closing part 220 is adapted to the shape of the side wall of the cleaning body 210. For example, if the cleaning body 210 is approximately cylindrical, the first opening and closing part 220 can be an arc-shaped plate, and the lifting and making way opening is an approximately square opening.

[0048] In one embodiment, in an embodiment where the second end of the cantilever 111 is connected to the printing platform 120, when the model is cleaned, the printing platform 120 needs to be located at one end of the accommodating inner cavity 201 so that the model can be completely located in the accommodating inner cavity 201. In order to allow the cantilever 111 to pass through the cleaning body 210 without leakage of cleaning liquid, a storage and clearance port is also provided on the cleaning body 210. The storage and clearance port is located on the side of the lifting and clearance port away from the print head 130, the storage and clearance port is connected to the lifting and clearance port, and the storage and clearance port is adapted to the outer contour of the cantilever 111. When cleaning the model, the first opening and closing portion 220 is in the first closed position, the cantilever 111 is embedded in the storage and clearance port, the cantilever 111 abuts against the edge of the storage and clearance port, the top surface of the cantilever 111 and the opening of the storage and clearance port are located in the same plane, and the first opening and closing portion 220 abuts against the top surface of the cantilever 111.

[0049] The storage clearance opening is a notch opened on the bottom edge of the lifting clearance opening. The states of the three-dimensional molding equipment include printing state and cleaning state. In the printing state, the cantilever 111 moves at least in the lifting clearance opening under the action of the lifting component 110. In the cleaning state, the cantilever 111 is embedded in the storage clearance opening, and the cantilever 111 and the opening of the storage clearance opening or the bottom edge of the lifting clearance opening are at the same height, and then the first opening and closing part 220 can be closed, and the first opening and closing part 220 will abut against the top surface of the cantilever 111 to achieve sealing around the cantilever 111.

[0050] In one embodiment, in order to make the accommodating inner cavity 201 have a better sealing effect, the cleaning mechanism 200 also includes a first sealing member, which is arranged on the cantilever 111. When the cantilever 111 is embedded in the storage and clearance opening, the first sealing member abuts against the edge of the storage and clearance opening and / or the first opening and closing portion 220. And / or, the first sealing member is arranged at the edge of the storage and clearance opening. When the cantilever 111 is embedded in the storage and clearance opening, the first sealing member abuts against the cantilever 111. And / or, the first sealing member is arranged at the edge of the first opening and closing portion 220. When the first opening and closing portion 220 is in the first closed position, the first sealing member abuts against the cantilever 111. The first sealing member can be a flexible waterproof material such as soft glue and foam.

[0051] In one embodiment, if Figure 7-9 As shown, the cleaning body 210 is also provided with an operation port connected to the accommodating inner cavity 201, and the cleaning mechanism 200 further includes a second opening and closing portion 230, which is movably connected to the cleaning body 210, and the positions of the second opening and closing portion 230 include a second open position and a second closed position, and the second opening and closing portion 230 is used to move under the action of an external force to switch between the second open position and the second closed position. In the second open position, the second opening and closing portion 230 does not completely cover or does not cover the operation port, and in the second closed position, the second opening and closing portion 230 covers the operation port.

[0052] The operation port can be arranged relative to the lifting and disengaging port, that is, the operation port is arranged relative to the lifting power body, and the width of the operation port can be greater than the lifting and disengaging port, so that the operator can pick up the model. The second opening and closing part 230 can be an arc-shaped plate-like structure adapted to the shape of the cleaning body 210. The second opening and closing part 230 can be moved manually or automatically. When printing and cleaning the model, the second opening and closing part 230 can always be in a closed position until the cleaning is completed, and the second opening and closing part 230 is opened to pick up the model. Alternatively, in one embodiment, the cleaning mechanism 200 also includes a linkage part, and the first opening and closing part 220 and the second opening and closing part 230 are connected by a linkage part. When the first opening and closing part 220 is in the first open position, the second opening and closing part 230 is in the second open position, and when the first opening and closing part 220 is in the first closed position, the second opening and closing part 230 is in the second closed position. That is, the first opening and closing portion 220 and the second opening and closing portion 230 are opened and closed at the same time, which can facilitate observation of the printing process during the printing process, reduce the difficulty of operation, and avoid the problem that the second opening and closing portion 230 is blocked by the model and is inconvenient to open and close manually.

[0053] In one embodiment, the cleaning mechanism 200 further includes a slide 240 and at least one roller 250, the slide 240 is connected to the cleaning body 210, the first opening and closing portion 220 and / or the second opening and closing portion 230 are provided with rollers 250, and the rollers 250 are rollingly connected to the slide 240. The first opening and closing portion 220 and the second opening and closing portion 230 may be provided with two rollers 250 respectively, the slide 240 may be a slat arranged according to the contour of the cleaning body 210, and the rollers 250 cooperate with the slide 240 to make the movement of the first opening and closing portion 220 and the second opening and closing portion 230 smoother.

[0054] In one embodiment, the cleaning mechanism 200 further includes a second sealing member, which is connected to at least one of the first opening and closing portion 220 and the cleaning body 210, and is used to seal the connection position between the first opening and closing portion 220 and the cleaning body 210. For example, the second sealing member can be connected to the edge of the lifting and giving way opening and abut against the outer surface of the first opening and closing portion 220.

[0055] In one embodiment, the cleaning mechanism 200 further includes a third sealing member 260, which is connected to at least one of the second opening and closing portion 230 and the cleaning body 210, and is used to seal the connection position between the second opening and closing portion 230 and the cleaning body 210. For example, the third sealing member 260 can be connected to the edge of the operation port and abut against the outer surface of the second opening and closing portion 230.

[0056] The third sealing member 260 can be made of a material with a low friction coefficient and waterproof, such as foam or wool felt.

[0057] The first opening and closing part 220 and the second opening and closing part 230 can be pushed and pulled manually, and a push-pull handle 292 can be set on the first opening and closing part 220 and the second opening and closing part 230, so as to facilitate hand-held movement. In one embodiment, the cleaning mechanism 200 also includes a mobile power mechanism, which is connected to the first opening and closing part 220 and / or the second opening and closing part 230, and is used to drive the first opening and closing part 220 and / or the second opening and closing part 230 to move. The mobile power mechanism can be a combination of a motor, a gear and a rack, the rack is fixed on the first opening and closing part 220 and / or the second opening and closing part 230, the gear is connected to the motor, the motor drives the gear to rotate, and the gear is driven to push and pull the first opening and closing part 220 and / or the second opening and closing part 230 through the meshing of the gear and the rack. In the embodiment in which the first opening and closing part 220 and the second opening and closing part 230 are linked, the first opening and closing part 220 and the second opening and closing part 230 can be opened and closed automatically. After the model is printed and needs to be cleaned, the operator does not need to manually close the first opening and closing portion 220 and the second opening and closing portion 230, making the printing and cleaning process more intelligent.

[0058] In one embodiment, the lifting assembly 110 is connected to the printing platform 120, the print head 130 is located outside the accommodating inner cavity 201, and the cleaning mechanism 200 includes a cleaning body 210, the cleaning body 210 includes the accommodating inner cavity 201, and a printing clearance port connected to the accommodating inner cavity 201 is opened on the cleaning body 210, and the printing clearance port is opposite to the print head 130, and the print head 130 and the printing platform 120 are used to cooperate in printing a model through the printing clearance port. Alternatively, the lifting assembly 110 is connected to the print head 130, the cleaning mechanism 200 includes a cleaning body 210, the cleaning body 210 includes the accommodating inner cavity 201, and a printing clearance port connected to the accommodating inner cavity 201 is opened on the cleaning body 210, and the printing clearance port is opposite to the print head 130, the printing platform 120 is located in the accommodating inner cavity 201 and opposite to the printing clearance port, and the print head 130 is used to enter the accommodating inner cavity 201 through the printing clearance port to print a model on the printing platform 120.

[0059] In order to avoid the contamination of the print head 130 by the cleaning liquid, and to avoid damage to the print head 130 or water ingress affecting the next step of printing, when the model is cleaned, it is necessary to ensure that the print head 130 is located outside the accommodating inner cavity 201. The printing clearance port is connected to the aforementioned lifting clearance port. In the embodiment in which the cantilever 111 of the lifting assembly 110 is connected to the print head 130, during the printing process, the cantilever 111 will enter the lifting clearance port, and the print head 130 will enter the accommodating inner cavity 201 from the printing clearance port. The print head 130 moves under the drive of the cantilever 111 and prints in the accommodating inner cavity 201. When the model needs to be cleaned, the print head 130 is moved out to the top of the printing clearance port, and the cantilever 111 will be located outside the lifting clearance port. After closing the first opening and closing part 220, the model can be cleaned. Alternatively, in the embodiment in which the cantilever 111 of the lifting assembly 110 is connected to the printing platform 120, the print head 130 can always be located outside the accommodating inner cavity 201. During the printing process, the cantilever 111 will move from the lifting and lowering opening, and the printing platform 120 will move out of the receiving cavity 201 from the printing opening, and print at the height of the print head 130. During the printing process, the cantilever 111 drives the printing platform 120 to move down layer by layer, and gradually enters the receiving cavity 201 from the printing opening. When the model needs to be cleaned, the cantilever 111 will drive the printing platform 120 to move downward to the side of the receiving cavity 201 away from the print head 130 to ensure that the complete model is located in the receiving cavity 201, and the cantilever 111 will be embedded in the storage opening of the aforementioned embodiment. After closing the first opening and closing part 220, the model can be cleaned.

[0060] The above arrangement ensures that only the printing platform 120 and the model are located in the accommodating inner cavity 201, which greatly reduces the volume of the cleaning body 210 and lowers the waterproof level requirements of functional components such as the print head 130, reduces costs, and ensures printing performance.

[0061] In one embodiment, the printing mechanism 100 further includes an ink supply assembly 150 , which is connected to the print head 130 and is used to provide the print head 130 with resin of at least one color and / or material.

[0062] The ink supply assembly 150 provides the print head 130 with a photocurable resin, which may be only the resin or other materials required for printing. In one embodiment, the ink supply assembly 150 includes a plurality of ink cartridges and a plurality of conveying members, the print head 130 includes a plurality of openable and closable nozzles, the conveying members are respectively connected to the ink cartridges and the print head 130, the ink cartridges correspond to the nozzles, the ink cartridges are used to store the resin, and the conveying members are used to supply the resin in the ink cartridges to the corresponding nozzles so as to be sprayed onto the printing platform 120 through the nozzles.

[0063] The resins stored in the multiple ink cartridges may be resins of different colors or resins of different materials. Pigments include a variety of colors, such as black, white, red, yellow, blue; or white, cyan, magenta, yellow, black, etc. The color mixing process may be carried out by setting a special color mixing chamber in the nozzle assembly, or a special device for color mixing may be set separately, or the mixture may be sprayed on the release film and mixed by molecular movement, which is not limited in the present application. In a more specific embodiment, the print head 130 may use a print head 130 capable of DIW printing of hydrogels, which can realize the spraying of medium and high viscosity ink resins, and can realize high-precision printing and real-time color mixing.

[0064] The conveying member may be of various types, such as a combination of a hose and a pump, the hose connecting the nozzle and the ink cartridge, the pump may be connected to the hose, such as a peristaltic pump, the pump may also be connected to the ink cartridge, such as an air pump, by inputting a fixed amount of gas into the ink cartridge to pressurize the resin. In some other embodiments, the print head 130 includes a print head housing, the print head housing includes a print head cavity, and the conveying member and the nozzle are both located in the print head cavity. For example, the print head cavity may include a channel, the channel connecting the ink cartridge and the nozzle, and the conveying member may be a component that moves periodically when receiving an external control signal, such as a piezoelectric ceramic sheet or a starting screw, etc., and the resin in the channel is pressed out by the movement of the conveying member relative to the nozzle.

[0065] Furthermore, the printing mechanism 100 further includes a first curing light source 160, which is used to project curing light to cure the resin sprayed by the print head 130 to form a layer of the model. The first curing light source 160 can be in various forms and positions, such as the first curing light source 160 can be connected to the support body 400 and opposite to the printing platform 120, and the first curing light source 160 is used to provide curing light to at least the printing platform 120. For example, it is located directly above the printing platform 120 and projects light from top to bottom. The first curing light source 160 can generate curing light after the print head 130 finishes spraying, such as after the print head 130 finishes spraying, the print head 130 is moved to one side and does not block the model. The contour of the projection of the curing light generated by the first curing light source 160 on the printing platform 120 is consistent with the contour of the current layer of the model, or the projection on the current printing layer is consistent with the contour of the current layer of the model, and then the current layer of the model is cured at one time. During the spraying process of the print head 130, the first curing light source 160 may not project light to reduce energy consumption and heat generation. Alternatively, the first curing light source 160 is used to continuously generate curing light during the spraying process of the print head 130, and the contour of the projection of the curing light on the printing platform 120 or the current printing layer is consistent with the contour of at least a part of the area of ​​the current layer of the model that has been sprayed. For example, when the print head sprays to half of the current layer of the model, the first curing light source 160 only generates half of the contour corresponding to the spraying area or illuminates a part of the spraying area, and then takes into account the guaranteed exposure time, so that the model is cured in time and energy consumption is reduced.

[0066] In some other embodiments, the first curing light source 160 can also be connected to the print head 130 and opposite to the printing platform 120. The first curing light source 160 is used to move with the print head 130 to at least provide curing light to the printing platform 120. The first curing light source 160 can be a line light source, a point light source or a surface light source, and can move with the print head 130 to spray and cure in real time, thereby ensuring the timeliness of curing. In some embodiments, multiple first curing light sources 160 can be provided at the same time, which are respectively connected to the print head 130 and are provided above the printing platform 120 and connected to the support body 400.

[0067] The first curing light source 160 can generate curing light of a preset contour in a variety of ways, such as the first curing light source 160 includes a display screen and a backlight source, the display screen is used to display the preset contour, the backlight source is located on the side of the display screen opposite to the printing platform 120, and the display screen selectively allows light to pass through, and then the light forms a preset contour. Alternatively, the first curing light source 160 includes an optical machine that can directly display light of a preset contour. In some embodiments, the first curing light source 160 also includes a reflector and a light shield, and the light of the optical machine passes through the reflector, propagates along the light shield, and is then projected onto the printing platform 120, which serves to extend the optical path of the optical machine and avoid interference from external light.

[0068] In one embodiment, the cleaning mechanism 200 includes a cleaning body 210 and a liquid supply component. The cleaning body 210 includes a receiving inner cavity 201 . The liquid supply component is used to provide cleaning liquid into the receiving inner cavity 201 .

[0069] The liquid supply component can be in various forms, and is intended to spray liquid into the receiving cavity 201. The liquid supply component can be connected to an additional liquid storage container, or, as Figure 1 , Figure 3 As shown, the liquid supply assembly includes at least one liquid storage box 271 and at least one liquid supply part 272. The liquid storage box 271 is used to store cleaning liquid, and the liquid supply part 272 is at least connected to the liquid storage box 271. There can be multiple liquid storage boxes 271, which can store different solutions, such as alcohol, clean water or various mixtures for cleaning. The liquid supply assembly also includes a nozzle, and the liquid supply part 272 can include a hose and a liquid supply drive. The liquid supply drive is connected to the hose, and the hose is connected to the nozzle and the liquid storage box 271 respectively. The liquid supply drive can be a peristaltic pump. The liquid supply drive is used to push the cleaning liquid to the nozzle, and the cleaning liquid in the liquid storage box 271 is sprayed to the containing cavity 201 through the nozzle. The nozzle can be fixedly connected to the inner wall of the containing cavity 201, and near the upper position, the nozzle can be tilted downward to spray.

[0070] In another embodiment, at least one liquid supply cavity is opened on the cleaning body 210, and a plurality of water spray holes 211 are opened on the inner wall of the cleaning body 210. The water spray holes 211 pass through the liquid supply cavity and the containing inner cavity 201. The liquid supply cavity is also connected to the liquid supply component 272. The liquid supply component 272 is used to provide cleaning liquid into the liquid supply cavity so as to spray the cleaning liquid into the containing inner cavity 201 through the water spray holes 211.

[0071] There can be two liquid supply chambers, located between the aforementioned lifting and giving way port and the operating port, and the two liquid supply chambers are arranged relatively to achieve full utilization of the side wall space of the cleaning body 210. There are multiple water spray holes 211, which are arranged at the position of the inner wall of the cleaning body 210 corresponding to the liquid supply chamber. It can be understood that when the printing platform 120 moves to the position waiting for the model to be cleaned, the water spray hole 211 should be located above the printing platform 120. The two liquid supply chambers can be independent of each other, and each is connected to a set of liquid supply components for providing different cleaning liquids, such as one for spraying alcohol and the other for spraying clean water. Alternatively, the two liquid supply chambers can be connected to achieve mixing of different cleaning liquids. The number of liquid supply chambers can be more. The implementation of the liquid supply chamber is adopted to achieve full utilization of the space of the cleaning body 210, avoid the occupation of space caused by the additional setting of the nozzle, and buffer the cleaning liquid through the liquid supply chamber to avoid excessive force of the cleaning liquid spraying on the model and damage the model. In addition, it is also convenient to arrange the water spray holes 211 more densely, so that the spraying position is more dense and the cleaning is more thorough.

[0072] In one embodiment, if Fig. 9 As shown, the liquid supply assembly also includes a water supply connector 273. The hose of the liquid supply member 272 is connected to the liquid storage box 271 and the water supply connector 273 respectively. The water supply connector 273 is connected to the liquid supply cavity near the bottom of the liquid supply cavity.

[0073] In one embodiment, the cleaning mechanism 200 further includes a liquid discharge component, which is used to discharge the cleaning liquid in the receiving cavity 201. The cleaning liquid in the receiving cavity 201 is discharged in time to avoid soaking of the printing platform 120 and other connecting parts, thereby avoiding water leakage and material aging caused by soaking.

[0074] like Figure 1 , Figure 3 As shown, the drainage assembly includes at least one drainage box 281 and at least one drainage member 282. The drainage member 282 is respectively connected to the drainage box 281 and the cleaning body 210, and the drainage member 282 is connected to the accommodating inner cavity 201. The drainage member 282 is used to discharge the cleaning liquid in the accommodating inner cavity 201 to the drainage box 281, and the drainage box 281 is used to accommodate the cleaning liquid.

[0075] The drainage member 282 may include a hose and a drainage driving member, the drainage driving member is connected to the hose, the drainage driving member may be a peristaltic pump, and the hose is communicated with the accommodating inner cavity 201 and the drainage box 281 respectively.

[0076] In order to allow the cleaning liquid in the receiving cavity 201 to be completely drained, in one embodiment, the side wall of the receiving cavity 201 includes a bottom wall, and the bottom wall is opposite to the print head 130, that is, the bottom wall is the inner wall at the bottom end of the receiving cavity 201. Figure 7 As shown, the drainage assembly further includes at least one water outlet connector 283, which is connected to the cleaning body 210 and communicates with the accommodating inner cavity 201 through the bottom wall, and the drainage member 282 is connected to the water outlet connector 283. For example, a hose is sleeved on the water outlet connector 283.

[0077] Furthermore, at least a portion of the bottom wall is provided with a water outlet joint 283, which is inclined in a direction close to the water outlet joint 283 and away from the printing platform 120. That is, at least a portion of the bottom wall is inclined downward in a direction close to the water outlet joint 283, so that the cleaning liquid in the accommodating inner cavity 201 can flow to the water outlet joint 283 and will not accumulate on the bottom wall.

[0078] The connection between the liquid supply component 272 and the liquid discharge component 282 described in the above embodiment of the present application is through a liquid pipe connection. It is common knowledge in the field and it is no longer mentioned that they are connected through liquid pipes, but simply referred to as connection.

[0079] In order to make the surface of the model present a better effect, after the model is cleaned, the model can be further cured to make the surface hardness of the model higher and smoother. In one embodiment, the three-dimensional molding device also includes a second curing light source 300, which is used to provide curing light to the accommodating inner cavity 201 to cure the surface of the model.

[0080] The second curing light source 300 may include a plurality of UV lamp beads 310. The second curing light source 300 may be arranged at a plurality of positions. For example, in an embodiment where the printing mechanism 100 includes a lifting power body, the second curing light source 300 is connected to the lifting power body, such as the UV lamp beads 310 are fixed on the support body 112 of the lifting power body, and are extended and arranged in the vertical direction. Alternatively, the second curing light source 300 is connected to the support body 400 of the stereoscopic molding device, such as the second curing light source 300 further includes a support plate 320, the UV lamp beads 310 are arranged on the support plate 320, and the support plate 320 is connected to the support body 400. The second curing light source 300 may be arranged adjacent to the lifting power body, such as the support plate 320 is arranged on both sides of the support body 112, and half covers the support body 112, leaving only an opening for the cantilever 111 to move, thereby taking into account both aesthetics and compact structure. The second curing light source 300 can be disposed adjacent to the lifting power body or connected to the lifting power body. During the curing process, the first opening and closing portion 220 can be opened so that the light of the second curing light source 300 can be directly projected onto the model.

[0081] In some other embodiments, the second curing light source 300 may also be disposed at other locations, such as when at least a portion of the side wall of the inner cavity 201 is a transparent area, and the curing light is projected onto the model through the transparent area. For example, the second curing light source 300 may be directly disposed on the outer wall of the transparent area, or may be connected to the supporting body 400 and opposite to the transparent area.

[0082] In one embodiment, the three-dimensional molding device further includes: a rotating driving member 500 , which is connected to the printing mechanism 100 , and is used to drive the printing platform 120 to rotate so that the model rotates relative to the second curing light source 300 .

[0083] For example, the rotary drive member 500 is connected to the cantilever 111, the rotary drive member 500 is located below the printing platform 120, and the output end of the rotary drive member 500 is connected to the printing platform 120. During the model cleaning and curing process, the printing platform 120 can be driven to rotate, and then the model can be rotated, which can achieve a better cleaning effect, and can achieve that the second curing light source 300 is only set on a single side of the model, and the model can be rotated to perform uniform curing at various positions in the circumference.

[0084] In one embodiment, the stereolithography apparatus further includes a support body 400, such as Figure 3-4 As shown, the support body 400 may further include a support frame 410 and at least one side sealing plate 420. The support frame 410 and the side sealing plate 420 are detachably connected. The support frame 410 and the side sealing plate 420 enclose an opening and closing space 401, and part of the structure of the cleaning mechanism 200 is located in the opening and closing space 401.

[0085] The support frame 410 includes an internal space, and the lifting assembly 110, the printing platform 120 and the print head 120 in the aforementioned printing mechanism 100 are all located in the support frame 410, and the cleaning body 210, the first opening and closing part 220, the second opening and closing part 230, the roller 250 and the slideway 240 of the cleaning mechanism 200 are also all located in the support frame 410. The ink cartridge of the ink supply assembly 150 of the aforementioned embodiment is arranged at the top of the support frame 410, and the side sealing plate 420 covers the ink cartridge. The liquid supply assembly and the liquid discharge assembly of the aforementioned embodiment are arranged on one side or both sides of the support frame 410, and the side sealing plate 420 covers the liquid supply assembly and the liquid discharge assembly. On the one hand, it is convenient to open the side sealing plate 420 to fill the resin, replenish or pour the cleaning liquid. On the other hand, it prevents the printing device from being contaminated by leakage of the container.

[0086] In one embodiment, if Figure 2-3 As shown, the three-dimensional molding device further includes: at least one fan 600 , and the fan 600 is used to provide airflow into the containing inner cavity 201 to dry and cool the containing inner cavity 201 .

[0087] There can be two fans 600, which are arranged outside the cleaning body 210 on both radial sides, and can be arranged relative to the top of the cleaning body 210, and provide airflow to the accommodating inner cavity 201 through the printing opening, which can accelerate the drying of cleaning liquids such as alcohol, and play a cooling effect on the second curing light source 300, etc. Alternatively, the fan 600 can be located at any height, and the airflow can enter the accommodating inner cavity 201 by opening the first opening and closing part 220 and the second opening and closing part 230.

[0088] On the other hand, the utility model also provides a three-dimensional forming method, comprising:

[0089] S1-1, obtaining data of the printing model;

[0090] The data includes the slice data and material information of the model. For example, when the model is a color model, the data of the model includes the outline of each layer of the model, as well as the color, thickness and color corresponding area of ​​the single layer model.

[0091] S1-2, controlling the printing mechanism to print a model corresponding to the data on the printing platform 120 of the printing mechanism.

[0092] Take the embodiment in which the printing mechanism 100 includes a lifting assembly 110 and a print head 130, and the lifting assembly 110 is used to drive the printing platform 120 to move as an example. The print head 130 can move in the horizontal direction under the action of the plane driving assembly 140. The printing platform 120 moves upward to the initial position close to the print head 130 under the action of the lifting assembly 110. The ink supply assembly 150 is started to provide resin to the print head 130 according to the color of the current layer model. The plane driving assembly 140 drives the print head 130 to move to spray the resin on the printing platform 120. The first curing light source 160 is started to cure the resin, or the first curing light source 160 can be continuously turned on and synchronously cured while the print head 130 sprays. Then, the printing platform 120 moves downward by the thickness of a layer of model under the action of the lifting assembly 110, and the above operation is repeated to print the second layer model, the third layer model and other subsequent layer models.

[0093] S1-3. In response to a model printing completion signal or a user instruction, the cleaning mechanism is started to provide cleaning liquid into the accommodating inner cavity of the cleaning mechanism to clean the model.

[0094] After the model is printed, the cleaning process can be directly started, or further instructions from the user can be waited for. After the cleaning process is started, the printing platform 120 continues to move downward to the preset position under the action of the lifting component 110 to ensure that the model is completely located in the accommodating cavity 201. Then the liquid supply component and the liquid discharge component are started to spray the model and collect the waste liquid. Alternatively, the printing platform 120 can be kept still and the liquid supply component and the liquid discharge component can be directly started, which can be set according to the actual height of the printed model.

[0095] In one embodiment, the present application also provides another three-dimensional forming method, including:

[0096] S2-1, obtaining data of the printing model. Please refer to the description of S1-1.

[0097] S2-2, controlling the first opening and closing portion 220 of the cleaning mechanism to move to open the printing opening of the cleaning mechanism, so that the printing mechanism moves in the printing opening.

[0098] The cleaning mechanism 200 includes a mobile power mechanism, and the lifting assembly 110 includes a cantilever 111. In an embodiment in which the cantilever 111 passes through a printing clearance port and is connected to the printing platform 120, before printing begins, the first opening and closing portion 220 is driven to move by the mobile power mechanism so that the printing clearance port can make way for the lifting and lowering of the cantilever 111, and then the printing platform 120 can be lifted and lowered to cooperate with the print head 130 to achieve printing.

[0099] S2-3, control the printing mechanism to print the model corresponding to the data on the printing platform 120 of the printing mechanism. Please refer to the description of S1-2.

[0100] S2-4, in response to a model printing completion signal or a user instruction, controlling a portion of the structure of the printing mechanism located in the printing clearance opening to move to the storage clearance opening of the cleaning mechanism.

[0101] The control arm 111 drives the printing platform 120 to move downward to a preset position. At this time, the arm 111 is embedded in the storage opening below the printing opening to make way for the closing of the first opening and closing part 220. It can be understood that before step S2-2, the arm 111 is located in the storage opening.

[0102] S2-5, controlling the first opening and closing portion 220 to move to cover the printing opening.

[0103] The first opening and closing portion 220 is driven to move in the reverse direction by the moving power mechanism to close the printing opening to prevent the cleaning liquid from splashing out.

[0104] S2-6, start the cleaning mechanism to provide cleaning liquid into the containing inner cavity of the cleaning mechanism.

[0105] Start the liquid supply component and the liquid discharge component to spray the model and collect the waste liquid.

[0106] S2-7. In response to a cleaning completion signal or a user instruction, the rotary drive member 500 is started to drive the printing platform 120 to rotate, so that the model rotates relative to the second curing light source 300.

[0107] In the embodiment where the three-dimensional molding device includes the second curing light source 300, after cleaning is completed, the printing platform 120 can be directly driven to rotate, or the printing platform 120 can be driven to rotate after waiting for the user's curing instruction.

[0108] S2-8. In response to a cleaning completion signal or a user instruction, the second curing light source 300 is started to provide curing light to the accommodating inner cavity 201 to cure the surface of the model.

[0109] The model surface is uniformly cured in coordination with the model rotation, making the model surface harder and smoother, and the model molding quality is higher. Step S2-7 and step S2-8 can be performed simultaneously, or the printing platform 120 can be driven to rotate first, and then the second curing light source 300 is started to avoid the second curing light source 300 from irradiating a part for a long time.

[0110] The utility model also provides the following implementation modes:

[0111] Reference numeral 1, a three-dimensional molding device, comprising: a printing mechanism 100, the printing mechanism 100 comprising a printing platform 120, the printing mechanism 100 is used to print a model on the printing platform 120;

[0112] The cleaning mechanism 200 includes an accommodating inner cavity 201 , and the accommodating inner cavity 201 is at least used to accommodate the printing platform 120 . The cleaning mechanism 200 is used to provide cleaning liquid into the accommodating inner cavity 201 to clean the model.

[0113] Reference numeral 2, a three-dimensional molding device according to reference numeral 1, wherein the printing mechanism 100 further comprises a lifting assembly 110 and a printing head 130, and the printing platform 120 is arranged opposite to the printing head 130;

[0114] The lifting assembly 110 is connected to one of the printing platform 120 and the print head 130 , and is used to drive the printing platform 120 or the print head 130 to move so that the printing platform 120 and the print head 130 are moved closer to or farther from each other.

[0115] Reference numeral 3, a three-dimensional molding device according to reference numeral 2, wherein the printing mechanism 100 further comprises a plane driving assembly 140; the lifting assembly 110 is connected to the printing platform 120, the plane driving assembly 140 is connected to the printing head 130, and the plane driving assembly 140 is used to drive the printing head 130 to move in a plane parallel to the printing platform 120;

[0116] Alternatively, the lifting assembly 110 is connected to the plane driving assembly 140, the plane driving assembly 140 is connected to the print head 130, the lifting assembly 110 is used to drive the plane driving assembly 140 and the print head 130 to move together toward or away from the printing platform 120, and the plane driving assembly 140 is used to drive the print head 130 to move in a plane parallel to the printing platform 120;

[0117] Alternatively, the lifting assembly 110 is connected to the print head 130 , and the planar driving assembly 140 is connected to the printing platform 120 , and the planar driving assembly 140 is used to drive the printing platform 120 to move in a plane parallel to the printing platform 120 .

[0118] Label 4, a three-dimensional molding device according to label 3, wherein the planar driving component 140 includes an X-axis driving unit 141 and a Y-axis driving unit 142, the X-axis driving unit 141 is connected to the print head 130 or the printing platform 120, and is used to drive the print head 130 or the printing platform 120 to move in the X-axis direction, and the Y-axis driving unit 142 is connected to the X-axis driving unit 141, and is used to drive the X-axis driving unit 141 to move in the Y-axis direction.

[0119] Reference numeral 5, a three-dimensional molding device according to reference numeral 4, wherein the X-axis driving unit 141 comprises at least one first driving member 1411, a first guide rail 1412 and at least one first transmission member, the print head 130 is slidably connected to the first guide rail 1412, the first transmission member is respectively connected to the first driving member 1411 and the print head 130, and the first transmission member comprises a conveyor belt or a screw rod;

[0120] And / or, the Y-axis driving unit 142 includes a second driving member 1421, a second guide rail 1422 and a second transmission member 1423, the X-axis driving unit 141 is slidably connected to the second guide rail 1422, the second transmission member 1423 is respectively connected to the second driving member 1421 and the X-axis driving unit 141, and the second transmission member 1423 includes a conveyor belt or a screw rod;

[0121] And / or, there are two Y-axis driving units 142 , and both ends of the X-axis driving unit 141 in the extending direction are respectively connected to the two Y-axis driving units 142 .

[0122] Reference numeral 6, the three-dimensional molding device according to reference numeral 2, wherein the lifting assembly 110 comprises a lifting power body and a cantilever 111, and the lifting power body is located outside the accommodating inner cavity 201;

[0123] The cleaning mechanism 200 includes a cleaning body 210, the cleaning body 210 includes an accommodating inner cavity 201, and a lifting and discharging opening connected to the accommodating inner cavity 201 is opened on the cleaning body 210, and the lifting and discharging opening extends at least along the moving direction of the cantilever 111;

[0124] The first end of the cantilever 111 is connected to the lifting power body, and the second end of the cantilever 111 is connected to the printing platform 120 or the print head 130. The lifting power body is used to drive the cantilever 111 to move at least within the lifting opening so that the printing platform 120 and the print head 130 are moved closer to or away from each other.

[0125] Reference numeral 7, a three-dimensional forming device according to reference numeral 6, wherein the cleaning mechanism 200 further comprises a first opening and closing portion 220, the first opening and closing portion 220 is movably connected to the cleaning body 210, the position of the first opening and closing portion 220 comprises a first open position and a first closed position, and the first opening and closing portion 220 is used to move under the action of an external force to switch between the first open position and the first closed position;

[0126] When in the first open position, the first opening and closing portion 220 does not completely cover or does not cover the lifting and disposing opening. When in the first closed position, the first opening and closing portion 220 covers the lifting and disposing opening.

[0127] Reference numeral 8, a three-dimensional forming device according to reference numeral 7, wherein a receiving and giving way opening is further provided on the cleaning body 210, the receiving and giving way opening is located on a side of the lifting and giving way opening away from the print head 130, the receiving and giving way opening is communicated with the lifting and giving way opening, and the receiving and giving way opening is adapted to the outer contour of the cantilever 111;

[0128] The second end of the cantilever 111 is connected to the printing platform 120;

[0129] When cleaning the model, the first opening and closing portion 220 is in the first closed position, the cantilever 111 is embedded in the storage opening, the cantilever 111 abuts against the edge of the storage opening, the top surface of the cantilever 111 and the opening of the storage opening are located in the same plane, and the first opening and closing portion 220 abuts against the top surface of the cantilever 111.

[0130] Reference numeral 9, according to the three-dimensional forming device of reference numeral 8, wherein the cleaning mechanism 200 further comprises a first sealing member; the first sealing member is disposed on the cantilever 111, the cantilever 111 is embedded in the storage opening, and when the first opening and closing portion 220 is in the first closed position, the first sealing member abuts against the edge of the storage opening and / or the first opening and closing portion 220;

[0131] And / or, the first sealing member is disposed at the edge of the receiving and making room opening, and when the cantilever 111 is inserted into the receiving and making room opening, the first sealing member abuts against the cantilever 111;

[0132] And / or, the first sealing member is disposed at an edge of the first opening and closing portion 220 , and when the first opening and closing portion 220 is in the first closed position, the first sealing member abuts against the cantilever 111 .

[0133] Reference numeral 10, a three-dimensional forming device according to reference numeral 7, wherein an operation port connected to the accommodating inner cavity 201 is further provided on the cleaning body 210, and the cleaning mechanism 200 further comprises a second opening and closing portion 230, the second opening and closing portion 230 is movably connected to the cleaning body 210, the position of the second opening and closing portion 230 comprises a second open position and a second closed position, and the second opening and closing portion 230 is used to move under the action of an external force to switch between the second open position and the second closed position;

[0134] When in the second open position, the second opening and closing portion 230 does not completely cover or does not cover the operation port, and when in the second closed position, the second opening and closing portion 230 covers the operation port;

[0135] The cleaning mechanism 200 also includes a linkage part, and the first opening and closing part 220 and the second opening and closing part 230 are connected by the linkage part. When the first opening and closing part 220 is in the first open position, the second opening and closing part 230 is in the second open position. When the first opening and closing part 220 is in the first closed position, the second opening and closing part 230 is in the second closed position.

[0136] Reference numeral 11. The three-dimensional forming device according to reference numeral 10, wherein the cleaning mechanism 200 further comprises a slideway 240 and at least one roller 250, one of the slideway 240 and the roller 250 is connected to the cleaning body 210, the first opening and closing portion 220 and / or the second opening and closing portion 230 is provided with the other of the slideway 240 and the roller 250, and the roller 250 is rollingly connected to the slideway 240;

[0137] And / or, the cleaning mechanism 200 further includes a second sealing member, the second sealing member is connected to at least one of the first opening and closing portion 220 and the cleaning body 210, and the second sealing member is used to seal the connection position between the first opening and closing portion 220 and the cleaning body 210;

[0138] And / or, the cleaning mechanism 200 further includes a third sealing member 260, the third sealing member 260 is connected to at least one of the second opening and closing portion 230 and the cleaning body 210, and the third sealing member 260 is used to seal the connection position between the second opening and closing portion 230 and the cleaning body 210;

[0139] And / or, the cleaning mechanism 200 further includes a moving power mechanism, which is connected to the first opening and closing part 220 and / or the second opening and closing part 230 and is used to drive the first opening and closing part 220 and / or the second opening and closing part 230 to move.

[0140] Reference numeral 12, a three-dimensional molding device according to reference numeral 2, wherein the lifting assembly 110 is connected to the printing platform 120, the print head 130 is located outside the accommodating inner cavity 201, the cleaning mechanism 200 includes a cleaning body 210, the cleaning body 210 includes the accommodating inner cavity 201, a printing clearance port connected to the accommodating inner cavity 201 is opened on the cleaning body 210, the printing clearance port is opposite to the print head 130, and the print head 130 and the printing platform 120 are used to cooperate with each other to print the model through the printing clearance port;

[0141] Alternatively, the lifting assembly 110 is connected to the print head 130, the cleaning mechanism 200 includes a cleaning body 210, the cleaning body 210 includes a accommodating inner cavity 201, a printing clearance port connected to the accommodating inner cavity 201 is opened on the cleaning body 210, the printing clearance port is opposite to the print head 130, the printing platform 120 is located in the accommodating inner cavity 201 and is opposite to the printing clearance port, and the print head 130 is used to enter the accommodating inner cavity 201 through the printing clearance port to print the model on the printing platform 120.

[0142] Reference numeral 13. The three-dimensional forming device according to reference numeral 2, wherein:

[0143] The printing mechanism 100 further includes an ink supply assembly 150 , which is connected to the print head 130 and is used to provide the print head 130 with at least one color and / or material of resin;

[0144] The ink supply assembly 150 includes multiple ink cartridges and multiple conveying parts. The print head 130 includes multiple openable and closable nozzles. The conveying parts are respectively connected to the ink cartridges and the print head 130. The ink cartridges correspond to the nozzles. The ink cartridges are used to store resin. The conveying parts are used to supply the resin in the ink cartridges to the corresponding nozzles so as to be sprayed onto the printing platform 120 through the nozzles. The print head 130 includes a print head housing, the print head housing includes a print head inner cavity, and the conveying parts and the nozzles are both located in the print head inner cavity.

[0145] Reference numeral 14, a three-dimensional molding device according to reference numeral 2, wherein the printing mechanism 100 further comprises a first curing light source 160; the first curing light source 160 is opposite to the printing platform 120, and the first curing light source 160 is used to provide curing light at least to the printing platform 120;

[0146] The first curing light source 160 is used to generate curing light after the printing head 130 finishes spraying, and the outline of the projection of the curing light is consistent with the outline of the current layer model;

[0147] Alternatively, the first curing light source 160 is used to generate curing light during the spraying process of the print head 130, and the contour of the projection of the curing light is consistent with the contour of at least a part of the area where the current layer of the model has been sprayed.

[0148] Label 15, a three-dimensional molding device according to label 2, wherein the printing mechanism 100 also includes a first curing light source 160; the first curing light source 160 is connected to the print head 130 and is opposite to the printing platform 120, and the first curing light source 160 is used to move with the print head 130 to provide curing light to at least the printing platform 120.

[0149] Label 16, a three-dimensional forming device according to label 1, wherein the cleaning mechanism 200 includes a cleaning body 210 and a liquid supply component, the cleaning body 210 includes a containing inner cavity 201, and the liquid supply component is used to provide cleaning liquid into the containing inner cavity 201.

[0150] Reference numeral 17. The three-dimensional forming device according to reference numeral 16, wherein:

[0151] The liquid supply assembly includes at least one liquid storage box 271 and at least one liquid supply member 272. The liquid storage box 271 is used to store cleaning liquid, and the liquid supply member 272 is at least connected to the liquid storage box 271.

[0152] The liquid supply assembly also includes a spray head, which is connected to the liquid supply member 272. The liquid supply member 272 is used to spray the cleaning liquid in the liquid storage box 271 to the receiving cavity 201 through the spray head;

[0153] And / or, at least one liquid supply cavity is opened on the cleaning body 210, and a plurality of water spray holes 211 are opened on the inner wall of the cleaning body 210. The water spray holes 211 pass through the liquid supply cavity and the containing cavity 201. The liquid supply cavity is also connected to the liquid supply component 272. The liquid supply component 272 is used to provide cleaning liquid into the liquid supply cavity, so as to spray the cleaning liquid into the containing cavity 201 through the water spray holes 211.

[0154] Reference numeral 18, the three-dimensional forming device according to reference numeral 16, wherein the cleaning mechanism 200 further comprises a liquid discharge component, and the liquid discharge component is used to discharge the cleaning liquid in the accommodating inner cavity 201;

[0155] The drainage assembly includes at least one drainage box 281 and at least one drainage member 282. The drainage member 282 is connected to the drainage box 281 and the cleaning body 210 respectively, and the drainage member 282 is connected to the accommodating inner cavity 201. The drainage member 282 is used to discharge the cleaning liquid in the accommodating inner cavity 201 to the drainage box 281. The drainage box 281 is used to accommodate the cleaning liquid.

[0156] Reference numeral 19, a three-dimensional molding device according to reference numeral 18, wherein the side wall of the accommodating inner cavity 201 includes a bottom wall, the bottom wall is opposite to the print head 130, the liquid discharge assembly further includes at least one water outlet joint 283, the water outlet joint 283 is connected to the cleaning body 210, and is in communication with the accommodating inner cavity 201 through the bottom wall, and the liquid discharge member 282 is connected to the water outlet joint 283;

[0157] At least a portion of the bottom wall is provided with a water outlet joint 283 , and is inclined in a direction close to the water outlet joint 283 and away from the printing platform 120 .

[0158] Reference number 20. The three-dimensional forming device according to reference number 1, wherein the three-dimensional forming device further comprises:

[0159] The second curing light source 300 is used to provide curing light to the accommodating inner cavity 201 to cure the surface of the model.

[0160] Reference numeral 21, a three-dimensional molding device according to reference numeral 20, wherein the printing mechanism 100 comprises a lifting power body, and the second curing light source 300 is connected to the lifting power body;

[0161] Alternatively, the second curing light source 300 is connected to the supporting body 400 of the stereolithography device;

[0162] And / or, at least a portion of the side wall of the accommodating inner cavity 201 is a transparent area, and the second curing light source 300 projects curing light onto the model through the transparent area.

[0163] Reference numeral 22. The three-dimensional forming device according to reference numeral 20, wherein the three-dimensional forming device further comprises:

[0164] The rotary driving member 500 is connected to the printing mechanism 100 , and is used to drive the printing platform 120 to rotate so that the model rotates relative to the second curing light source 300 .

[0165] Reference number 23. The three-dimensional forming device according to reference number 1, wherein the three-dimensional forming device further comprises:

[0166] The support body 400, the printing mechanism 100 and the cleaning mechanism 200 are all connected to the support body 400;

[0167] The support body 400 includes a support frame 410 and at least one side sealing plate 420. The support frame 410 and the side sealing plate 420 are detachably connected. The support frame 410 and the side sealing plate 420 enclose an opening and closing space 401. Part of the structure of the printing mechanism 100 and / or the cleaning mechanism 200 is located in the opening and closing space 401.

[0168] Reference number 24. The three-dimensional forming device according to reference number 1, wherein the three-dimensional forming device further comprises:

[0169] At least one fan 600 is used to provide airflow into the accommodating inner cavity 201 to dry and cool the accommodating inner cavity 201 .

[0170] Label 25, a three-dimensional molding device according to label 2, wherein the printing mechanism 100 also includes a leveling sensor, the leveling sensor is connected to the print head 130, and the leveling sensor is used to generate a detection signal when the print head 130 contacts or approaches the printing platform 120.

[0171] Reference numeral 26. A three-dimensional molding method, comprising: obtaining data of a printing model;

[0172] Controlling the printing mechanism to print a model corresponding to the data on a printing platform of the printing mechanism;

[0173] In response to a model printing completion signal or a user instruction, the cleaning mechanism is started to provide cleaning liquid into the accommodating inner cavity of the cleaning mechanism to clean the model.

[0174] Reference numeral 27. The three-dimensional forming method according to reference numeral 26, wherein before the step of controlling the printing mechanism to print the model corresponding to the data on the printing platform of the printing mechanism, the method further comprises:

[0175] Controlling the first opening and closing part of the cleaning mechanism to move so as to open the printing opening of the cleaning mechanism;

[0176] In response to a model printing completion signal or a user instruction, the step of starting the cleaning mechanism to provide cleaning liquid into the receiving inner cavity of the cleaning mechanism to clean the model includes:

[0177] In response to a model printing completion signal or a user instruction, controlling a portion of the structure of the printing mechanism located in the printing clearance opening to move to the storage clearance opening of the cleaning mechanism;

[0178] Controlling the first opening and closing portion to move so as to cover the printing opening;

[0179] The cleaning mechanism is started to provide cleaning liquid into the receiving inner cavity of the cleaning mechanism.

[0180] Reference number 28. The three-dimensional forming method according to reference number 26, wherein the three-dimensional forming method further comprises:

[0181] In response to a cleaning completion signal or a user instruction, the second curing light source is activated to provide curing light to the receiving cavity to cure the surface of the model.

[0182] Reference number 29. The three-dimensional forming method according to reference number 26, wherein the three-dimensional forming method further comprises:

[0183] In response to a cleaning completion signal or a user instruction, the rotary drive member is started to drive the printing platform to rotate, so that the model rotates relative to the second curing light source.

[0184] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A three-dimensional forming device, characterized in that: include: A printing mechanism, the printing mechanism comprising a printing platform, the printing mechanism being used to print a model on the printing platform; The cleaning mechanism comprises a containing inner cavity, the containing inner cavity is used to contain at least the printing platform, and the cleaning mechanism is used to provide cleaning liquid into the containing inner cavity to clean the model.

2. The three-dimensional forming equipment according to claim 1, characterized in that: The printing mechanism further includes a lifting assembly and a printing head, and the printing platform is arranged opposite to the printing head; The lifting component is connected to one of the printing platform and the print head, and the lifting component is used to drive the printing platform or the print head to move so that the printing platform and the print head are moved closer to or farther away from each other.

3. The three-dimensional forming device according to claim 2, characterized in that: The printing mechanism also includes a planar drive assembly; The lifting assembly is connected to the printing platform, the plane driving assembly is connected to the printing head, and the plane driving assembly is used to drive the printing head to move in a plane parallel to the printing platform; Alternatively, the lifting assembly is connected to the plane driving assembly, the plane driving assembly is connected to the print head, the lifting assembly is used to drive the plane driving assembly and the print head to move together toward or away from the printing platform, and the plane driving assembly is used to drive the print head to move in a plane parallel to the printing platform; Alternatively, the lifting assembly is connected to the print head, the planar driving assembly is connected to the printing platform, and the planar driving assembly is used to drive the printing platform to move in a plane parallel to the printing platform.

4. The three-dimensional forming device according to claim 3, characterized in that: The planar driving assembly includes an X-axis driving unit and a Y-axis driving unit. The X-axis driving unit is connected to the print head or the printing platform and is used to drive the print head or the printing platform to move in the X-axis direction. The Y-axis driving unit is connected to the X-axis driving unit and is used to drive the X-axis driving unit to move in the Y-axis direction.

5. The three-dimensional forming equipment according to claim 4, characterized in that: The X-axis driving unit includes at least one first driving member, a first guide rail and at least one first transmission member, the print head is slidably connected to the first guide rail, the first transmission member is respectively connected to the first driving member and the print head, and the first transmission member includes a conveyor belt or a screw rod; And / or, the Y-axis driving unit includes a second driving member, a second guide rail and a second transmission member, the X-axis driving unit is slidably connected to the second guide rail, the second transmission member is respectively connected to the second driving member and the X-axis driving unit, and the second transmission member includes a conveyor belt or a screw rod; And / or, there are two Y-axis driving units, and both ends of the X-axis driving unit in the extending direction are respectively connected to the two Y-axis driving units.

6. The three-dimensional forming equipment according to claim 2, characterized in that: The lifting assembly comprises a lifting power body and a cantilever, wherein the lifting power body is located outside the containing inner cavity; The cleaning mechanism comprises a cleaning body, the cleaning body comprises the accommodating inner cavity, the cleaning body is provided with a lifting and discharging opening connected to the accommodating inner cavity, and the lifting and discharging opening extends at least along the direction in which the cantilever moves; The first end of the cantilever is connected to the lifting power body, and the second end of the cantilever is connected to the printing platform or the print head. The lifting power body is used to drive the cantilever to move at least within the lifting opening so that the printing platform and the print head are moved closer to or farther away from each other.

7. The three-dimensional forming device according to claim 6, characterized in that: The cleaning mechanism further includes a first opening and closing portion, the first opening and closing portion is movably connected to the cleaning body, the position of the first opening and closing portion includes a first open position and a first closed position, and the first opening and closing portion is used to move under the action of an external force to switch between the first open position and the first closed position; When in the first open position, the first opening and closing portion does not completely cover or does not cover the lifting and disposing opening. When in the first closed position, the first opening and closing portion covers the lifting and disposing opening.

8. The three-dimensional forming device according to claim 7, characterized in that: The cleaning body is also provided with a receiving and giving way opening, the receiving and giving way opening is located on a side of the lifting and giving way opening away from the print head, the receiving and giving way opening is communicated with the lifting and giving way opening, and the receiving and giving way opening is adapted to the outer contour of the cantilever; The second end of the cantilever is connected to the printing platform; When cleaning the model, the first opening and closing portion is in the first closed position, the cantilever is embedded in the storage opening, the cantilever abuts against the edge of the storage opening, the top surface of the cantilever and the opening of the storage opening are located in the same plane, and the first opening and closing portion abuts against the top surface of the cantilever.

9. The three-dimensional forming device according to claim 8, characterized in that: The cleaning mechanism also includes a first sealing member; The first sealing member is arranged on the cantilever, the cantilever is embedded in the storage opening, and when the first opening and closing portion is in the first closed position, the first sealing member abuts against the edge of the storage opening and / or the first opening and closing portion; And / or, the first sealing member is arranged at the edge of the receiving and making room opening, and when the cantilever is embedded in the receiving and making room opening, the first sealing member abuts against the cantilever; And / or, the first sealing member is arranged at an edge of the first opening and closing portion, and when the first opening and closing portion is in the first closed position, the first sealing member abuts against the cantilever.

10. The three-dimensional forming equipment according to claim 7, characterized in that: The cleaning body is also provided with an operation port connected to the accommodating inner cavity, and the cleaning mechanism further includes a second opening and closing portion, which is movably connected to the cleaning body, and the position of the second opening and closing portion includes a second open position and a second closed position, and the second opening and closing portion is used to move under the action of an external force to switch between the second open position and the second closed position; When in the second open position, the second opening and closing portion does not completely cover or does not cover the operation port, and when in the second closed position, the second opening and closing portion covers the operation port; The cleaning mechanism also includes a linkage member, and the first opening and closing part and the second opening and closing part are connected by the linkage member. When the first opening and closing part is in the first open position, the second opening and closing part is in the second open position. When the first opening and closing part is in the first closed position, the second opening and closing part is in the second closed position.

11. The three-dimensional forming device according to claim 10, characterized in that: The cleaning mechanism further comprises a slideway and at least one roller, one of which is connected to the cleaning body, the other of which is provided on the first opening and closing part and / or the second opening and closing part, and the roller is rollingly connected to the slideway; And / or, the cleaning mechanism further comprises a second sealing member, the second sealing member is connected to at least one of the first opening and closing portion and the cleaning body, and the second sealing member is used to seal a connection position between the first opening and closing portion and the cleaning body; And / or, the cleaning mechanism further comprises a third sealing member, the third sealing member is connected to at least one of the second opening and closing portion and the cleaning body, and the third sealing member is used to seal a connection position between the second opening and closing portion and the cleaning body; And / or, the cleaning mechanism further includes a moving power mechanism, which is connected to the first opening and closing part and / or the second opening and closing part and is used to drive the first opening and closing part and / or the second opening and closing part to move.

12. The three-dimensional forming equipment according to claim 2, characterized in that: The lifting assembly is connected to the printing platform, the print head is located outside the accommodating inner cavity, the cleaning mechanism includes a cleaning body, the cleaning body includes the accommodating inner cavity, a printing clearance port connected to the accommodating inner cavity is opened on the cleaning body, the printing clearance port is opposite to the print head, and the print head and the printing platform are used to cooperate to print the model through the printing clearance port; Alternatively, the lifting assembly is connected to the print head, the cleaning mechanism includes a cleaning body, the cleaning body includes the accommodating inner cavity, the cleaning body is provided with a printing clearance port connected to the accommodating inner cavity, the printing clearance port is opposite to the print head, the printing platform is located in the accommodating inner cavity and opposite to the printing clearance port, the print head is used to enter the accommodating inner cavity through the printing clearance port to print the model on the printing platform.

13. The three-dimensional forming device according to claim 2, characterized in that: The printing mechanism further comprises an ink supply assembly, which is connected to the print head and is used to provide the print head with resin of at least one color and / or material; The ink supply assembly includes a plurality of ink cartridges and a plurality of conveying members, the print head includes a plurality of openable and closable nozzles, the conveying members are respectively connected to the ink cartridges and the print head, the ink cartridges correspond to the nozzles, the ink cartridges are used to store the resin, and the conveying members are used to supply the resin in the ink cartridges to the corresponding nozzles so as to be sprayed onto the printing platform through the nozzles; The print head comprises a print head shell, the print head shell comprises a print head inner cavity, and the conveying member and the nozzle are both located in the print head inner cavity.

14. The three-dimensional forming device according to claim 2, characterized in that: The printing mechanism also includes a first curing light source; The first curing light source is opposite to the printing platform, and the first curing light source is used to provide curing light to at least the printing platform; The first curing light source is used to generate the curing light after the print head finishes spraying, and the outline of the projection of the curing light is consistent with the outline of the current layer model; Alternatively, the first curing light source is used to generate the curing light during the spraying process of the print head, and the contour of the projection of the curing light is consistent with the contour of at least a portion of the sprayed area of ​​the current layer model.

15. The three-dimensional forming device according to claim 2, characterized in that: The printing mechanism also includes a first curing light source; The first curing light source is connected to the print head and is opposite to the printing platform. The first curing light source is used to move with the print head to at least provide curing light to the printing platform.

16. The three-dimensional forming device according to claim 1, characterized in that: The cleaning mechanism comprises a cleaning body and a liquid supply component. The cleaning body comprises the accommodating inner cavity. The liquid supply component is used for providing the cleaning liquid into the accommodating inner cavity.

17. The three-dimensional forming device according to claim 16, characterized in that: The liquid supply assembly includes at least one liquid storage box and at least one liquid supply member, wherein the liquid storage box is used to store the cleaning liquid, and the liquid supply member is at least connected to the liquid storage box; The liquid supply assembly further includes a spray head, which is connected to the liquid supply member, and the liquid supply member is used to spray the cleaning liquid in the liquid storage box into the containing inner cavity through the spray head; And / or, at least one liquid supply cavity is provided on the cleaning body, and a plurality of water spray holes are provided on the inner wall of the cleaning body, wherein the water spray holes penetrate the liquid supply cavity and the accommodating inner cavity, and the liquid supply cavity is also connected to the liquid supply component, and the liquid supply component is used to provide the cleaning liquid into the liquid supply cavity so as to spray the cleaning liquid into the accommodating inner cavity through the water spray holes.

18. The three-dimensional forming device according to claim 16, characterized in that: The cleaning mechanism further comprises a liquid discharge component, and the liquid discharge component is used to discharge the cleaning liquid in the containing inner cavity; The drainage assembly includes at least one drainage box and at least one drainage member, the drainage member is respectively connected to the drainage box and the cleaning body, and the drainage member is communicated with the accommodating inner cavity, the drainage member is used to discharge the cleaning liquid in the accommodating inner cavity to the drainage box, and the drainage box is used to accommodate the cleaning liquid.

19. The three-dimensional forming device according to claim 18, characterized in that: The side wall of the accommodating inner cavity includes a bottom wall, the bottom wall is opposite to the print head of the printing mechanism, the liquid discharge assembly also includes at least one water outlet joint, the water outlet joint is connected to the cleaning body and communicates with the accommodating inner cavity through the bottom wall, and the liquid discharge member is connected to the water outlet joint; At least a partial area of ​​the bottom wall where the water outlet joint is disposed is inclined in a direction close to the water outlet joint and away from the printing platform.

20. The three-dimensional forming device according to claim 1, characterized in that: The three-dimensional forming equipment also includes: A second curing light source is used to provide curing light to the accommodating inner cavity to cure the surface of the model.

21. The three-dimensional forming device according to claim 20, characterized in that: The printing mechanism comprises a lifting power body, and the second curing light source is connected to the lifting power body; Alternatively, the second curing light source is connected to the supporting body of the stereoscopic molding device; And / or, at least a portion of the side wall of the accommodating inner cavity is a transparent area, and the second curing light source projects curing light onto the model through the transparent area.

22. The three-dimensional forming device according to claim 20, characterized in that: The three-dimensional forming equipment also includes: A rotary drive member is connected to the printing mechanism and is used to drive the printing platform to rotate so that the model rotates relative to the second curing light source.

23. The three-dimensional forming device according to claim 1, characterized in that: The three-dimensional forming equipment also includes: A supporting body, the printing mechanism and the cleaning mechanism are both connected to the supporting body; The support body includes a support frame and at least one side sealing plate, the support frame and the side sealing plate are detachably connected, the support frame and the side sealing plate enclose an open and closed space, and part of the structure of the printing mechanism and / or the cleaning mechanism is located in the open and closed space.

24. The three-dimensional forming device according to claim 1, characterized in that: The three-dimensional forming equipment also includes: At least one fan is used to provide airflow into the containing inner cavity to dry and cool the containing inner cavity.

25. The three-dimensional forming device according to claim 2, characterized in that: The printing mechanism further includes a leveling sensor connected to the print head, and the leveling sensor is used to generate a detection signal when the print head contacts or approaches the printing platform.

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