Model supporting device and 3D printer

Abstract

The utility model discloses a model supporting device and a 3D printer, which are mainly characterized in that a hanging mechanism is arranged to hang a connected piece, so that a model connecting piece is fixed, the connecting strength of the model connecting piece is ensured, and the model supporting device is easy to disassemble and assemble. According to the main technical scheme, the model supporting device comprises a main body; the hanging mechanism comprises a hanging assembly, and the hanging assembly is movably connected with the main body; the model connecting piece comprises a contact plate and a connected piece, the connected piece is connected with the contact plate, the contact plate is used for being connected with the model, and the contact plate is further used for deforming under external force; the hooking assembly is used for hooking a connected piece so as to fix the relative position of the contact plate and the main body. The utility model is mainly used for connecting models.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a model supporting device and a 3D printer. Background Art

[0002] In light-curing 3D printing, the light source irradiates the resin between the model connector and the release film, so that the resin solidifies according to the preset contour to form the first layer of the model and adheres to the model connector. Then the model connector rises, driving the model to separate from the release film, and the resin flows back to the bottom of the model connector, and then the second layer of the model is solidified. Repeat the above steps, stacking them one by one to achieve three-dimensional molding.

[0003] In order to ensure that the model can be stably fixed on the model connector, the adhesion between the model and the model connector is relatively large. When picking up the model, it is necessary to use workpieces such as knives and spatulas to peel off the model. Using tools can easily scratch the model and the model can easily break. In the prior art, there are also methods of peeling off the model by bending the spring steel plate, but the spring steel plate is connected by magnetic attraction. If the magnetic attraction force is large, it will cause the spring steel plate to be inconvenient to disassemble and assemble. If the magnetic attraction force is reduced, the connection strength of the spring steel plate will be insufficient. If the model is heavy, there is a risk of the spring steel plate falling off. Utility Model Content

[0004] In view of this, in order to solve at least one of the above-mentioned technical problems, an embodiment of the utility model provides a model supporting device and a 3D printer.

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

[0006] In one aspect, the utility model provides a model support device for 3D printing, the model support device comprising:

[0007] main body;

[0008] A hanging mechanism, the hanging mechanism includes a hanging assembly, and the hanging assembly is movably connected to the main body;

[0009] The model connecting part includes a contact plate and a connected part, the connected part is connected to the contact plate, the contact plate is used to connect the model, and the contact plate is also used to deform under external force;

[0010] The hanging assembly is used to hang the connected member to fix the relative position of the contact plate and the main body.

[0011] On the other hand, the utility model provides a 3D printer, comprising any one of the above-mentioned model supporting devices.

[0012] The utility model proposes a model support device and a 3D printer, which are mainly connected by setting a hanging mechanism to hang the connected parts, so as to achieve the fixation of the model connecting parts, ensure the connection strength of the model connecting parts, and facilitate disassembly and assembly. In the prior art, the model is peeled off by bending the spring steel plate, but the spring steel plate is connected by magnetic attraction. If the magnetic attraction force is large, it will lead to inconvenience in disassembly and assembly of the spring steel plate. If the magnetic attraction force is reduced, the connection strength of the spring steel plate will be insufficient. If the model is heavy, there is a risk of the spring steel plate falling off. Compared with the prior art, in the present application document, the model connecting parts are hung by hanging components, the relative positions of the contact plate and the main body are fixed, the connection strength of the model connecting parts is ensured, and it is ensured that it is not easy to fall off during the printing process. The hanging method is adopted to facilitate the disassembly and assembly of the model connecting parts. By bending the contact plate, the model can be peeled off, and then the convenience of model picking and contact plate disassembly is taken into account. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of a model support device provided by an embodiment of the utility model;

[0014] Figure 2 An exploded schematic diagram of a model support device provided by an embodiment of the utility model;

[0015] Figure 3 A structural schematic diagram of a hanging mechanism in a model supporting device provided by an embodiment of the utility model at a first viewing angle;

[0016] Figure 4 A structural schematic diagram of a hanging mechanism in a model supporting device provided by an embodiment of the utility model at a second viewing angle;

[0017] Figure 5 A schematic diagram of the structure of a hanging joint in a model supporting device provided by an embodiment of the utility model;

[0018] Figure 6 A schematic diagram of the structure of a lower shell in a model support device provided by an embodiment of the utility model;

[0019] Figure 7 A schematic diagram of a partial structure of a main body of a model support device provided by an embodiment of the utility model;

[0020] Figure 8 A schematic cross-sectional view of a model support device in a first position provided by an embodiment of the utility model;

[0021] Fig. 9 A schematic cross-sectional view of a model support device in a second position provided by an embodiment of the utility model;

[0022] Fig.10 for Fig. 9A partial enlarged schematic diagram of the model support device in area A is shown. DETAILED DESCRIPTION

[0023] 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 model support device proposed by the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] On the one hand, if Figure 1-2 As shown, the embodiment of the utility model provides a model support device for 3D printing, and the model support device includes:

[0025] Main body 100;

[0026] The hanging mechanism includes a hanging assembly 200, and the hanging assembly 200 is movably connected to the main body 100;

[0027] The model connecting member 300 includes a contact plate 310 and a connected member 320. The connected member 320 is connected to the contact plate 310. The contact plate 310 is used to connect the model and is also used to deform under external force.

[0028] The hanging assembly 200 is used to hang the connected member 320 to fix the relative position of the contact plate 310 and the main body 100 .

[0029] The model support device can be used in a 3D printer, and the model support device is used to connect the model to print the model. The 3D printer also includes a lifting mechanism, a cantilever, a base and a material trough, etc. The cantilever is connected to the lifting mechanism, the lifting mechanism is connected to the base, the material trough is placed on the base, the base can accommodate a light source, and the material trough is used to hold resin. The model support device is connected to the cantilever and is opposite to the material trough. During the printing process, the lifting mechanism drives the cantilever to rise and fall, driving the model support device to rise and fall relative to the material trough to achieve mobile printing. The model support device can be connected to the cantilever through the main body 100 and the cantilever, and the connection method can be a socket connection, a clamp connection, a bolt connection, etc. For example, a connecting block is set on the main body 100, a slot is provided on the connecting block, and a notch that passes through the slot is also provided on the connecting block. The cantilever is plugged into the slot, passes through the notch through the bolt handle, and is screwed on the cantilever to achieve the connection between the main body 100 and the cantilever. For the convenience of description, the following embodiments are all taken as an example of the direction actually used by the 3D printer.

[0030] After the model connector 300 is connected to the main body 100, the contact plate 310 is located at the bottom of the model support device to connect the model. In some embodiments, the contact plate 310 includes a first surface and a second surface opposite to each other, and the first surface is used to be opposite to the material trough to connect the model. The first surface can be a roughened surface to increase the connection strength with the model. The second surface is provided with a connected member 320. The contact plate 310 is a flexible plate-like structure, which can be a metal sheet, such as a spring steel plate. When the relative position of the contact plate 310 and the main body 100 is fixed, the first surface is a plane, and then a resin layer of uniform thickness can be formed between the release film, so that the first layer thickness of the model is uniform, so that the connection strength between the model and the contact plate 310 is uniform, and the model is not easy to be skewed or fall off. When the model needs to be picked up after printing, the contact plate 310 is removed, and the contact plate 310 is bent under the action of external force, such as holding the two ends of the contact plate 310, bending the contact plate 310 inward, and then making the surface of the contact plate 310 in contact with the model become an arc surface. Since the deformation degree of the model is smaller than that of the contact plate 310, the model can be automatically separated from the contact plate 310 by virtue of the deformation of the contact plate 310, thereby avoiding damage to the model caused by using a knife or scraper.

[0031] The hanging assembly 200 is used to hang the connected member 320. There are many ways to hang it, such as hanging by threading, or hanging by matching a hanging groove and a hook. For example, the hanging assembly 200 includes a hanging joint 220, and the hanging joint 220 includes a hook 222. The hanging end of the hook 222 is bent toward the connected member 320. The connected member 320 includes a hanging groove, and the hanging end is used to extend into the hanging groove. The hanging end is used to interact with the groove wall of the hanging groove to limit the connected member 320 to achieve hanging. Alternatively, it can also be hung by matching a hanging hole with a hook, or by matching a protrusion with a hook, which will not be described in detail. Taking the hanging groove as an example, the hanging groove interacts with the hanging end through the top wall, and then fixes the contact plate 310 at least in the vertical direction. The extension direction of the top wall of the hanging groove can be horizontal.

[0032] The utility model embodiment proposes a model support device and a 3D printer, which are mainly connected by setting a hanging mechanism to hang the connected parts, so as to achieve the fixation of the model connecting parts, ensure the connection strength of the model connecting parts, and facilitate disassembly and assembly. In the prior art, the model is peeled off by bending the spring steel plate, but the spring steel plate is connected by magnetic attraction. If the magnetic attraction force is large, it will lead to inconvenience in disassembly and assembly of the spring steel plate. If the magnetic attraction force is reduced, the connection strength of the spring steel plate will be insufficient. If the model is heavy, there is a risk of the spring steel plate falling off. Compared with the prior art, in the present application document, the model connecting parts are hung by hanging components, the relative positions of the contact plate and the main body are fixed, the connection strength of the model connecting parts is ensured, and it is not easy to fall off during the printing process. The hanging method is adopted to facilitate the disassembly and assembly of the model connecting parts. By bending the contact plate, the model can be peeled off, and then the convenience of model picking and contact plate disassembly and assembly is taken into account.

[0033] In one embodiment, the position of the hanging assembly 200 includes a hanging position and a release position, and the hanging assembly 200 is used to move between the hanging position and the release position under the action of an external force. When the hanging assembly 200 is in the release position, the hanging assembly 200 releases the connected member 320, and when the hanging assembly 200 is in the hanging position, the hanging assembly 200 hangs the connected member 320.

[0034] The position movement of the hanging component 200 can be manual direct movement of the hanging component 200, or it can be indirectly moved by relying on an additional device, or it can be controlled by the 3D printer main controller to automatically move the hanging component 200 by using a power member and a transmission member. When the hanging component 200 is in the hanging position, the hanging component 200 hangs the connected part 320, and then plays a role in fixing the connected part 320, or fixing the position of the model connecting part 300, so that the model connecting part 300 can participate in printing. When the hanging component 200 is in the loose position, the hanging component 200 is disengaged from the connected part 320, so that the connected part 320 gives way, and then the model connecting part 300 can be picked up, so that when picking up the model connecting part 300, there is no need to avoid the hanging component 200, which facilitates the picking up of the model connecting part 300. The movement in this application includes translation and rotation.

[0035] In one embodiment, the contact plate 310 is in contact with the main body 100 at least when the hanging assembly 200 is located at the hanging position.

[0036] When the hanging assembly 200 is in the released position, at least part of the contact plate 310 may be separated from the main body 100, or the contact plate 310 may be in contact with the main body 100. It is understood that if the contact plate 310 and the main body 100 do not overlap, they may not be in contact. For example, if a hole or a groove is provided on the contact plate 310, the contact plate 310 and the main body 100 may not be in contact at the hole or the groove.

[0037] In an embodiment where at least part of the contact plate 310 is separated from the main body 100, when the hanging component 200 moves to the hanging position, it will pull the model connector 300 upward, so that the contact plate 310 is close to the main body 100 until it fits with the main body 100, thereby ensuring that the main body 100 is evenly and strongly supported to avoid local deformation causing unstable model connection. When the hanging component 200 moves to the loosened position, it drives the model connector 300 downward, and part or all of the contact plate 310 sinks to separate from the main body 100, so that the model connector 300 can be picked up to avoid the contact plate 310 being tightly attached to the main body 100 and unable to move. Alternatively, in an embodiment where the contact plate 310 is always in contact with the main body 100, such as Figure 7 , 9 As shown, the model support device also includes: at least one magnetic member 700, the magnetic member 700 is connected to the main body 100, the material of the contact plate 310 includes a magnetic material that can be magnetically adsorbed by the magnetic member 700, and the magnetic member 700 is used to magnetically attract the contact plate 310. When the hanging assembly 200 moves to the hanging position, it will pull the model connector 300 so that the contact plate 310 is attached to the main body 100. When the hanging assembly 200 moves to the loose position, although the hanging assembly 200 is loosened, the magnetic member 700 still adsorbs the contact plate 310, and the contact plate 310 is still attached to the main body 100. The model connector 300 can be picked up by overcoming the magnetic attraction force by external force. It can be understood that compared with the method of only using magnetic attraction to fix the contact plate 310 in the prior art, in the above-mentioned embodiment of the present application, the magnetic member 700 cooperates with the hanging assembly 200 to fix the contact plate 310, and the magnetic attraction force of the magnetic member 700 does not need to be too large, so it is convenient to pick up the contact plate 310. The magnetic suction member 700 can be used to initially fix the contact plate 310, facilitate the movement of the hanging assembly 200, and realize one-handed operation, which increases convenience, and there is no need to add additional structures such as pulleys to the model connector 300.

[0038] In one embodiment, if Figure 3-4 As shown, the hanging assembly 200 includes a moving plate 210 and at least one hanging joint 220. The moving plate 210 is movably connected to the main body 100, and the hanging joint 220 is connected to the moving plate 210. The hanging joint 220 is used to hang the connected member 320.

[0039] The movement of the movable plate 210 drives the movement of the hanging joint 220, so that the synchronous movement of multiple hanging joints 220 can be realized at the same time, and then the multiple hanging joints 220 are synchronously hung.

[0040] The number and corresponding relationship of the hooking joints 220 and the connected member 320 can be various. In one embodiment, the number of the hooking joints 220 and the connected member 320 are both multiple, and the hooking joints 220 correspond to the connected member 320 one by one, that is, a single hooking joint 220 is hooked to a single connected member 320, and through the movement of the movable plate 210, multiple hooking joints 220 can be hooked to multiple connected members 320 at the same time. In another embodiment, the number of the hooking joints 220 is multiple, at least two hooking joints 220 are hooked to the same connected member 320, and the number of the connected member 320 can also be multiple, and any connected member 320 corresponds to two or more hooking joints 220. For example, the connected member 320 can be a long strip hanging groove, and the hooking joints 220 are arranged at intervals in the length direction of the connected member 320. In another embodiment, the number of connected parts 320 is multiple, and the hanging joint 220 hangs at least two connected parts 320. The number of hanging joints 220 can be one or more, and any hanging joint 220 corresponds to two or more connected parts 320. For example, the hanging joint 220 can be a long strip hook, and the connected parts 320 are arranged at intervals in the length direction of the hanging joint 220.

[0041] When there are multiple connected members 320, in some embodiments, the multiple connected members 320 are dispersedly arranged on the contact plate 310, such as evenly arranged, or arranged according to other structural features on the contact plate 310. The dispersed arrangement of the connected members 320 allows the contact plate 310 to be fixed at multiple dispersed positions, making the position of the contact plate 310 more stable and avoiding local deformation of the contact plate 310 caused by pulling.

[0042] In one embodiment, if Figure 5 As shown, the hook joint 220 includes a connecting seat 221 and at least one hook 222 . The connecting seat 221 is connected to the movable plate 210 . The hook 222 is rotatably connected to the connecting seat 221 . The hook 222 is used to hang the connected member 320 .

[0043] The hook 222 can be a single one or two or more. If the number of the hooks 222 is at least two, at least two hooks 222 are located on different sides of the connected member 320, and at least two hooks 222 are used to hang the connected member 320 from different sides of the connected member 320. If there are two hooks 222, the connected member 320 is provided with hanging grooves corresponding to the hooks 222 on opposite sides, and the hooks 222 are inserted into the hanging grooves from opposite sides of the connected member 320, so that the connected member 320 is clamped while being hung, which can increase the hanging strength, ensure the force balance of the connected member 320, and limit the connected member 320 in the horizontal direction.

[0044] In one embodiment, to facilitate the installation of the hook 222, the connection seat 221 includes a first sub-connection seat 2211 and a second sub-connection seat 2212, a connection shaft is provided on the second sub-connection seat 2212, and one end of the hook 222 is rotatably connected to the first sub-connection seat 2211 through the connection shaft. A socket is provided on the first sub-connection seat 2211, and the socket corresponds to the connection shaft. The second sub-connection seat 2212 is connected to the first sub-connection seat 2211 and fixed by bolts, thereby realizing the rotation connection of the hook 222, which can facilitate the installation and replacement of the hook 222. The active end of the hook 222 refers to the end of the hook 222 away from the connection seat 221.

[0045] In one embodiment, an operating hole 101 is opened on the main body 100 , and the hook joint 220 is connected to the operating hole 101 . The hole wall of the operating hole 101 is used to interact with the hook 222 so that the hook 222 moves to release or hook the connected member 320 .

[0046] The moving plate 210 and the contact plate 310 are located on both sides of at least part of the structure of the main body 100, and the hook joint 220 passes through the action hole 101 and acts on the connected member 320. When the hook assembly 200 moves to the hooking position, the hole wall of the action hole 101 acts on the hook 222, so that the hook 222 moves relative to the connected member 320, and then actively hooks the connected member 320. When the hook assembly 200 moves to the release position, the hole wall of the action hole 101 or an additional component acts on the hook 222 in the opposite direction, so that the hook 222 moves away from the connected member 320, and then actively releases the connected member 320.

[0047] In one embodiment, as shown in Figures 9-10, the active hole 101 includes a tightening area 102 and an open area 103, the open area 103 is closer to the contact plate 310 than the tightening area 102, the inner diameter of the open area 103 decreases in the direction away from the contact plate 310, and the inner diameter of the tightening area 102 is smaller than the inner diameter of the open area 103. When the hook assembly 200 is in the released position, the hook 222 abuts against the inner wall of the open area 103, and when the hook assembly 200 is in the hooked position, the hook 222 interacts with the tightening area 102.

[0048] The inner wall of the open area 103 is a conical surface, and the inner wall of the tightening area 102 can be an approximately cylindrical surface. The following is a detailed description of the action process of the action hole 101, taking the above-mentioned example that the hook end of the hook 222 is bent toward the connected part 320, and the connected part 320 includes a hook groove: when the hook assembly 200 is in the loose position, the hook 222 abuts against the inner wall of the open area 103 and is separated from the connected part 320, or the hook end is located outside the hook groove. When the contact plate 310 needs to be fixed, the hook assembly 200 moves to the hooking position, and the hook 222 moves from the open area 103 to the tightening area 102. The inner wall of the tightening area 102 acts on the hook 222, so that the hook end of the hook 222 moves toward the connected part 320 until the hook end extends into the hook groove to achieve the hooking. When the contact plate 310 needs to be picked up, the hanging assembly 200 moves to the loosened position, and the hook 222 moves from the tightening area 102 to the open area 103. The hook 222 gradually disengages from the tightening area 102. The hanging end of the hook 222 can move away from the connected part 320 under the action of external force until the hanging end disengages from the hanging groove, thereby facilitating the picking up of the contact plate 310.

[0049] There may be various ways in which the external force exerted on the hook 222 when it moves away from the connected part 320. For example, in one embodiment, the contact surface between the connected part 320 and the hook 222 is an inclined surface inclined upward in the direction close to the hook 222. By moving the contact plate 310, the connected part 320 moves downward and acts on the hook 222, so that the hanging end of the hook 222 slides toward the outside of the connected part 320 and then disengages from the hanging groove of the connected part 320.

[0050] Or, in another embodiment, if Figure 5 As shown, the hook joint 220 further includes a first elastic member 223, which is connected to at least the hook 222. The first elastic member 223 is used to apply elastic force to the hook 222, so that the hook 222 moves away from the connected member 320, and then when the hook 222 is completely moved to the open area 103, the hook 222 is actively pushed to open outward, so that the hook 222 releases the connected member 320 and makes way for the movement of the connected member 320. In the embodiment in which there are two hooks 222, which are respectively placed on both sides of the connected member 320, the first elastic member 223 can be a torsion spring, which is located between the two hooks 222, and the two ends of the torsion spring respectively abut the two hooks 222, and then the hooks 222 are simultaneously pushed to both sides, so that the two hooks 222 respectively abut against the side walls of the open area 103. The torsion spring can also be connected between the first sub-connection seat 2211 and the second sub-connection seat 2212 through the aforementioned connecting shaft.

[0051] In one embodiment, if Figure 1-10As shown, the main body 100 includes a sealing ring 111, which is at least partially inserted into the action hole 101. A sliding hole is opened on the sealing ring 111, and the connecting seat 221 is slidably connected with the sliding hole. The sealing ring 111 can be approximately cylindrical, and the sealing ring 111 can be made of plastic or metal. The inner wall of the sealing ring 111 is smooth, so that the connecting seat 221 can slide freely. The sealing ring 111 is used to seal the action hole 101, thereby preventing the resin from overflowing from the action hole 101. The sealing ring 111 and the action hole 101 can be interference fit.

[0052] In one embodiment, the main body 100 further includes a sealing ring gland 112, which contacts the sealing ring 111 to fix the position of the sealing ring 111. The sealing ring gland 112 may be an approximately annular sheet structure, and the sealing ring gland 112 is connected to the outer side of the edge of the action hole 101, such as being connected to the lower shell 120, such as being bolted. A boss may be provided in the action hole 101, and the sealing ring gland 112 restricts the sealing ring 111 between the boss and the sealing ring gland 112 to achieve the fixation of the sealing ring 111.

[0053] In one embodiment, a movable inner cavity is provided on the main body 100, the movable plate 210 is located in the movable inner cavity, the action hole 101 is connected to the movable inner cavity, and the sealing ring 111 prevents the resin from entering the movable inner cavity. The movable inner cavity is used to protect the movable plate 210 and other structures provided in the movable inner cavity, and makes the appearance of the model support device more concise.

[0054] In one embodiment, the main body 100 includes a lower shell 120 and an upper shell 130, and the lower shell 120 and the upper shell 130 are detachably connected to enclose an active inner cavity, and the movable plate 210 is located in the active inner cavity. The lower shell 120 is provided with an action hole 101, and the action hole 101 is connected to the active inner cavity. For example, the lower shell 120 can be a similar slot body structure, and the upper shell 130 is a similar plate-like structure. The upper shell 130 covers the slot opening of the lower shell 120, and then encloses the containing inner cavity with the lower shell 120. The lower shell 120 and the upper shell 130 are detachably connected, which facilitates the installation of the hanging assembly 200, as well as the installation and replacement of other structures in the containing inner cavity.

[0055] In one embodiment, the main body 100 further includes a seal, which is disposed between the lower shell 120 and the upper shell 130, and is used to seal the active inner cavity. For example, the seal is disposed at the edge of the slot opening of the lower shell 120, and is used to abut against the upper shell 130 for sealing. The seal may be a soft rubber.

[0056] In one embodiment, if Figure 7As shown, the model supporting device further includes: a second elastic member 500, the second elastic member 500 is located between the main body 100 and the hanging assembly 200, and the second elastic member 500 is used to apply elastic force to the hanging assembly 200 to move the hanging assembly 200 to the hanging position.

[0057] The second elastic member 500 is used to drive the hanging assembly 200 to move to the hanging position, so that when the external force for the hanging assembly 200 to move to the release position is removed, the hanging assembly 200 can automatically move to the hanging position and remain at the hanging position to fix the model connecting member 300. The second elastic member 500 can be a spring, foam, soft rubber, etc.

[0058] In one embodiment, the main body 100 includes one of the first limit member 150 and the second limit member 211, and the hanging assembly 200 includes the other of the first limit member 150 and the second limit member 211, and the first limit member 150 is slidably connected to the second limit member 211 to limit the moving direction of the hanging assembly 200.

[0059] In an embodiment where the mounting assembly 200 includes a movable plate 210, Figure 4 As shown, the second limit member 211 can be a limit hole, and the second limit member 211 is provided on the movable plate 210. The number of the second limit members 211 can be multiple, such as four. The first limit member 150 can be provided on the lower shell 120, and the first limit member 150 can be a limit rod. The first limit member 150 corresponds to the second limit member 211 in position and is slidably connected. In the aforementioned embodiment including the second elastic member 500, the second elastic member 500 can be a spring, and the second elastic member 500 is sleeved on the first limit member 150. The first limit member 150 and the second limit member 211 can play a guiding role in the movement of the movable plate 210, so as to prevent the movable plate 210 and the hanging joint 220 from shaking.

[0060] In one embodiment, the model supporting device further comprises: a moving assembly 400, which is respectively connected to the main body 100 and the hanging assembly 200. The moving assembly 400 is used to apply force to drive the hanging assembly 200 to move between the release position and the hanging position.

[0061] Manually operating the moving assembly 400 and applying force to the hanging assembly 200 through the moving assembly 400 can facilitate operation and achieve position restriction of the hanging assembly 200. The structure of the moving assembly 400 can be various. For example, in one embodiment, Figure 2 , Figure 8-9As shown, the moving assembly 400 includes an action wheel 410 and a rotating handle 420, the rotating handle 420 is rotatably connected to the main body 100, the action wheel 410 is connected to the rotating handle 420, the action wheel 410 includes a first end and a second end, and the distance between the first end of the action wheel 410 and the rotation axis of the action wheel 410 is greater than the distance between the second end of the action wheel 410 and the rotation axis of the action wheel 410. The rotating handle 420 is used to apply force to drive the action wheel 410 to rotate around the rotation axis, so that the first end or the second end of the action wheel 410 abuts against the hanging assembly 200, when the first end of the action wheel 410 abuts against the hanging assembly 200, the hanging assembly 200 is located in a released position, and when the second end of the action wheel 410 abuts against the hanging assembly 200, the hanging assembly 200 is located in a hanging position.

[0062] The example of the aforementioned hook assembly 200 including a movable plate 210 and a movable inner cavity provided on the main body 100 is used for explanation. The movable plate 210 is located in the movable inner cavity, and an action port 104 is also provided on the main body 100, which is connected to the movable inner cavity. The movable assembly 400 interacts with the movable plate 210 of the hook assembly 200 through the action port 104, such as abutting against each other. When installing the model connector 300, the handle 420 is moved and rotated so that the first end of the action wheel 410 abuts against the movable plate 210, the hook assembly 200 is located in the release position, the hook 222 is in an open state, and the connected member 320 is opposite to the hook 222. The handle 420 is rotated forward so that the second end of the action wheel 410 rotates toward the movable plate 210, and the movable plate 210 moves to the hook position under the action of the second elastic member 500, and then the model connector 300 is hung. When the second end of the action wheel 410 abuts against the movable plate 210, the hook 222 will completely hook the connected member 320, and the contact plate 310 of the model connector 300 will fit with the bottom surface of the main body 100, thereby realizing the installation of the model connector 300. When the printing is completed and the model connector 300 needs to be disassembled, the handle 420 is moved in the opposite direction so that the first end of the action wheel 410 rotates toward the movable plate 210, and the movable plate 210 moves to the release position under the pressure of the action wheel 410, overcoming the elastic force of the second elastic member 500, and the hook 222 is opened to release the model connector 300. When the first end of the action wheel 410 abuts against the movable plate 210, the hook 222 will completely disengage from the connected member 320, and then the model connector 300 can be picked up.

[0063] The action wheel 410 and the rotating handle 420 may be integrally formed or eccentrically connected, so long as the action wheel 410 and the rotating handle 420 rotate synchronously. When the main body 100 includes an upper shell 130, the rotating handle 420 may be rotatably connected to the upper shell 130. An openable and closable accommodation cavity is provided on the upper shell 130, the accommodation cavity is communicated with the action port 104, and the action wheel 410 may be located in the accommodation cavity.

[0064] In one embodiment, the main body 100 further includes a steering limiter 140 , which is located at one side of the rotating handle 420 . The steering limiter 140 is used to act with the rotating handle 420 to limit the rotation direction of the rotating handle 420 .

[0065] The steering limiter 140 can be fixedly connected to the main body 100, such as fixed to the upper shell 130, or can be integrally formed with the main body 100 or the upper shell 130. The steering limiter 140 is used to prevent the handle 420 from rotating incorrectly, ensure that the active area of ​​the handle 420 can switch the first end or the second end of the action wheel 410 against the movable plate 210, and prevent the action wheel 410 from failing to act on the movable plate 210 as expected due to an error in the active area of ​​the handle 420.

[0066] In one embodiment, if Figure 8 As shown, the hooking mechanism also includes an action plate 610 and a buffer elastic member 620. The buffer elastic member 620 is arranged between the action plate 610 and the hooking assembly 200. The moving assembly 400 is used to act with the action plate 610 to drive the hooking assembly 200 to move between the hooking position and the release position.

[0067] The number of buffer elastic members 620 may be multiple, such as four dispersedly arranged. The buffer elastic member 620 may be a spring, foam or soft rubber. The action plate 610 is used to abut against the action wheel 410 of the moving assembly 400, and the buffer elastic member 620 plays the role of buffering the squeezing force of the action wheel 410, so as to avoid the rigid connection between the action wheel 410 and the hanging assembly 200 causing damage to the hanging assembly 200. When the contact plate 310 is disassembled, if the contact plate 310 is stuck by external force, such as when the contact plate 310 is still in close contact with the release film due to an operational error, the handle 420 is moved and rotated. Since the position of the hanging assembly 200 is restricted by the contact plate 310 and cannot be moved, the squeezing of the action wheel 410 will be released through the action plate 610 and the buffer elastic member 620, so as to avoid direct rigid squeezing of the hanging assembly 200 causing local deformation or crushing of the contact plate 310 and the release film.

[0068] In one embodiment, the hanging mechanism further includes a connecting block 630, which is connected to the hanging assembly 200, and the buffer elastic member 620 is connected to the connecting block 630. A spring cavity is provided on the connecting block 630, and a part of the buffer elastic member 620 is embedded in the spring cavity.

[0069] The connecting block 630 can be fixedly connected to the movable plate 210 of the hanging assembly 200, which can be easily processed, or the connecting block 630 and the movable plate 210 can be integrally formed. The setting of the spring cavity facilitates the installation of the buffer elastic member 620, and can limit the buffer elastic member 620 to prevent the buffer elastic member 620 from bending to one side.

[0070] In one embodiment, the hanging assembly 200 further includes a third limit member, which is connected to one of the action plate 610 and the hanging assembly 200, and a fourth limit member is provided on the other of the action plate 610 and the hanging assembly 200, and the third limit member is slidably connected to the fourth limit member.

[0071] The third limiter can be connected to the connecting block 630, such as being arranged in the spring cavity, and the third limiter can be a limiter column, and the buffer elastic member 620 can be sleeved on the third limiter. A fourth limiter is arranged on the action plate 610, and the fourth limiter can be a limiter hole. The third limiter and the fourth limiter are slidably connected, so that the action plate 610 can move only in the vertical direction, and the vibration of the action plate 610 can be avoided.

[0072] In one embodiment, if Figure 2 , Figure 6 As shown, the main body 100 is provided with a limiting groove 105 , and the model connector 300 further includes a limiting rib 330 , and the limiting rib 330 is connected to the contact plate 310 . The limiting rib 330 is used to be plugged into the limiting groove 105 .

[0073] The limiting groove 105 and the limiting rib 330 work together to limit the horizontal position of the model connector 300, and cooperate with the hanging assembly 200 to make the position of the model connector 300 more stable. On the other hand, when installing the model connector 300, the limiting rib 330 is first aligned with the limiting groove 105. At this time, the connected part 320 will be opposite to the hanging joint 220, which is convenient for aligning the connected part 320 with the hanging joint 220.

[0074] In one embodiment, the connected member 320 is disposed on the limiting rib 330. If the connected member 320, the contact plate 310 and the limiting rib 330 are integrally formed, the connection strength of the contact plate 310 can be increased, the force application area of ​​the contact plate 310 can be increased, and the point force application can be avoided to cause the contact plate 310 to be easily deformed. It can be understood that in order to make the hanging joint 220 correspond to the connected member 320, the action hole 101 should be connected to the limiting groove 105.

[0075] In one embodiment, the model connector 300 further includes two handles 340, which are respectively connected to opposite sides of the contact plate 310. The handles 340 are perpendicular to the contact plate 310, and are used to slide against the main body 100.

[0076] The handle 340 can facilitate the picking up and moving of the model connector 300 , and can increase the stability of the position of the model connector 300 by abutting against the main body 100 .

[0077] In one embodiment, the model connector 300 further includes a reinforcing plate 350 , which includes a first connecting surface and a second connecting surface, the first connecting surface and the second connecting surface are perpendicular, the first connecting surface is connected to the contact plate 310 surface, and the second connecting surface is connected to the handle 340 surface.

[0078] The first connection surface and the second connection surface of the reinforcing plate 350 form a right angle, which can limit the angle of the handle 340 and the contact plate 310 to prevent the handle 340 from changing its angle and failing to interact with the main body 100.

[0079] In one embodiment, at least one liquid guide hole is provided on the contact plate 310 to prevent resin from remaining on the contact plate 310 and reduce the driving burden of the lifting mechanism.

[0080] On the other hand, the utility model provides a 3D printer, including any of the above-mentioned model support devices, as well as a lifting mechanism, a cantilever, a base, and a material trough, etc. The main body 100 of the model support device is directly or indirectly connected to the cantilever. The 3D printer includes any of the above-mentioned model support devices, including the advantages of any of the above-mentioned model support devices, which will not be repeated here.

[0081] Optionally, the 3D printer may include a material tank, and a light source and a Fresnel lens below the material tank, wherein light emitted by the light source passes through the Fresnel lens to irradiate the material tank, so that the printing material in the material tank is solidified on the model supporting device.

[0082] Among them, the focal lengths of the Fresnel lens are different, and the focal length of the Fresnel lens gradually increases from the edge to the center. The central focal length of the Fresnel lens is less than 2 times the edge focal length of the Fresnel lens.

[0083] The utility model also provides the following implementation modes:

[0084] Reference numeral 1. A model support device for 3D printing, wherein the model support device comprises:

[0085] Main body 100;

[0086] The hanging mechanism includes a hanging assembly 200, and the hanging assembly 200 is movably connected to the main body 100;

[0087] The model connecting member 300 includes a contact plate 310 and a connected member 320. The connected member 320 is connected to the contact plate 310. The contact plate 310 is used to connect the model and is also used to deform under external force.

[0088] The hanging assembly 200 is used to hang the connected member 320 to fix the relative position of the contact plate 310 and the main body 100 .

[0089] Reference numeral 2. A model support device according to reference numeral 1, wherein:

[0090] The position of the hook assembly 200 includes a hook position and a release position, and the hook assembly 200 is used to move between the hook position and the release position under the action of an external force;

[0091] When the hanging assembly 200 is located at the releasing position, the hanging assembly 200 releases the connected member 320 , and when the hanging assembly 200 is located at the hanging position, the hanging assembly 200 hangs the connected member 320 .

[0092] Reference numeral 3. A model support device according to reference numeral 2, wherein:

[0093] The contact plate 310 is in contact with the main body 100 at least when the hanging assembly 200 is located at the hanging position.

[0094] Reference numeral 4. A model support device according to reference numeral 2, wherein:

[0095] The hanging assembly 200 includes a moving plate 210 and at least one hanging joint 220, the moving plate 210 is movably connected to the main body 100, and the hanging joint 220 is connected to the moving plate 210;

[0096] The hook joint 220 is used to hook the connected component 320 .

[0097] Reference numeral 5. A model support device according to reference numeral 4, wherein:

[0098] There are multiple numbers of the hooking joints 220 and the connected parts 320, and the hooking joints 220 correspond to the connected parts 320 one by one;

[0099] Alternatively, there are multiple hooking joints 220, and at least two hooking joints 220 are hooked to the same connected member 320;

[0100] Alternatively, there are multiple connected parts 320 , and the hanging head 220 hangs at least two connected parts 320 .

[0101] Reference numeral 6. A model support device according to reference numeral 4, wherein:

[0102] The hook joint 220 includes a connection seat 221 and at least one hook 222 . The connection seat 221 is connected to the movable plate 210 . The hook 222 is rotatably connected to the connection seat 221 . The hook 222 is used to hang the connected component 320 .

[0103] Reference numeral 7. A model support device according to reference numeral 6, wherein:

[0104] The number of the hooks 222 is at least two, and the at least two hooks 222 are located at different sides of the connected member 320 . The at least two hooks 222 are used to hang the connected member 320 from different sides of the connected member 320 .

[0105] Reference numeral 8. A model support device according to reference numeral 6, wherein:

[0106] The main body 100 is provided with an operating hole 101, and the hook joint 220 is connected to the operating hole 101. The hole wall of the operating hole 101 is used to interact with the hook 222, so that the hook 222 moves to release or hook the connected member 320;

[0107] The active hole 101 includes a tightening area 102 and an open area 103. The open area 103 is closer to the contact plate 310 than the tightening area 102. The inner diameter of the open area 103 decreases in the direction away from the contact plate 310. The inner diameter of the tightening area 102 is smaller than the inner diameter of the open area 103.

[0108] When the hook assembly 200 is located at the release position, the hook 222 abuts against the inner wall of the open area 103 . When the hook assembly 200 is located at the hook position, the hook 222 interacts with the tightening area 102 .

[0109] Reference numeral 9. A model support device according to reference numeral 8, wherein:

[0110] The main body 100 includes a sealing ring 111, which is at least partially inserted into the working hole 101. The sealing ring 111 is provided with a sliding hole, and the connecting seat 221 is slidably connected with the sliding hole;

[0111] The main body 100 further includes a sealing ring gland 112 , which contacts the sealing ring 111 to fix the position of the sealing ring 111 .

[0112] Reference numeral 10. A model support device according to reference numeral 8, wherein:

[0113] The main body 100 is provided with an active inner cavity, the movable plate 210 is located in the active inner cavity, and the working hole 101 is connected with the active inner cavity;

[0114] Alternatively, the main body 100 includes a lower shell 120 and an upper shell 130, the lower shell 120 and the upper shell 130 enclose an active inner cavity, the movable plate 210 is located in the active inner cavity, and an active hole 101 is opened on the lower shell 120, and the active hole 101 is connected to the active inner cavity.

[0115] Reference numeral 11. A model support device according to reference numeral 6, wherein:

[0116] The hook joint 220 further includes a first elastic member 223 , which is connected to at least the hook 222 . The first elastic member 223 is used to apply elastic force to the hook 222 , causing the hook 222 to move away from the connected member 320 , so that the hook 222 releases the connected member 320 .

[0117] Reference numeral 12. A model support device according to reference numeral 11, wherein:

[0118] The number of the hooks 222 is at least two, and the first elastic member 223 is located between at least two hooks 222 .

[0119] Reference numeral 13. A model support device according to reference numeral 6, wherein:

[0120] The hook 222 includes a hanging end, which is bent toward the connected member 320. The connected member 320 includes a hanging groove. When the hanging assembly 200 is in the hanging position, the hanging end extends into the hanging groove. The hanging end is used to interact with the groove wall of the hanging groove to limit the connected member 320.

[0121] Reference number 14. The model support device according to reference number 2, wherein the model support device further comprises:

[0122] A second elastic member 500;

[0123] The second elastic member 500 is located between the main body 100 and the hanging assembly 200 . The second elastic member 500 is used to apply elastic force to the hanging assembly 200 to move the hanging assembly 200 to the hanging position.

[0124] Reference number 15. A model support device according to reference number 2, wherein:

[0125] The main body 100 includes one of the first limiting member 150 and the second limiting member 211 , and the hanging assembly 200 includes the other of the first limiting member 150 and the second limiting member 211 . The first limiting member 150 is slidably connected to the second limiting member 211 to limit the moving direction of the hanging assembly 200 .

[0126] Reference number 16. The model support device according to reference number 2, wherein the model support device further comprises:

[0127] The moving assembly 400 is connected to the main body 100 and the hanging assembly 200 respectively. The moving assembly 400 is used to apply force to drive the hanging assembly 200 to move between a release position and a hanging position.

[0128] Reference numeral 17. A model support device according to reference numeral 16, wherein:

[0129] The main body 100 is provided with an active inner cavity, and at least part of the structure of the hanging assembly 200 is located in the active inner cavity;

[0130] The main body 100 is also provided with an operating port 104 , which is communicated with the moving inner cavity, and the moving component 400 is connected with the hanging component 200 via the operating port 104 .

[0131] Reference numeral 18. A model support device according to reference numeral 16, wherein:

[0132] The moving assembly 400 includes an action wheel 410 and a rotating handle 420, the rotating handle 420 is rotatably connected to the main body 100, the action wheel 410 is connected to the rotating handle 420, the action wheel 410 includes a first end and a second end, and the distance between the first end of the action wheel 410 and the rotation axis of the action wheel 410 is greater than the distance between the second end of the action wheel 410 and the rotation axis of the action wheel 410;

[0133] The rotating handle 420 is used to apply force to drive the action wheel 410 to rotate around the rotating axis so that the first end or the second end of the action wheel 410 abuts against the hanging assembly 200. When the first end of the action wheel 410 abuts against the hanging assembly 200, the hanging assembly 200 is located in a released position. When the second end of the action wheel 410 abuts against the hanging assembly 200, the hanging assembly 200 is located in a hanging position.

[0134] Reference numeral 19. A model support device according to reference numeral 18, wherein:

[0135] The main body 100 further includes a steering limiter 140 , which is located at one side of the rotating handle 420 . The steering limiter 140 is used to act with the rotating handle 420 to limit the rotation direction of the rotating handle 420 .

[0136] Reference numeral 20. A model support device according to reference numeral 16, wherein:

[0137] The hooking mechanism also includes an action plate 610 and a buffer elastic member 620. The buffer elastic member 620 is arranged between the action plate 610 and the hooking assembly 200. The moving assembly 400 is used to act with the action plate 610 to drive the hooking assembly 200 to move between the hooking position and the releasing position.

[0138] Reference numeral 21. A model support device according to reference numeral 20, wherein:

[0139] The hanging mechanism further includes a connecting block 630, the connecting block 630 is connected to the hanging assembly 200, and the buffer elastic member 620 is connected to the connecting block 630;

[0140] A spring cavity is defined on the connecting block 630 , and a portion of the buffer elastic member 620 is embedded in the spring cavity.

[0141] Reference numeral 22. A model support device according to reference numeral 20, wherein:

[0142] The hanging mechanism also includes a third limit member, which is connected to one of the action plate 610 and the hanging assembly 200. The action plate 610 and the hanging assembly 200 are provided with a fourth limit member, and the third limit member is slidably connected to the fourth limit member to limit the moving direction of the action plate 610.

[0143] Reference number 23. A model support device according to reference number 1, wherein:

[0144] The main body 100 is provided with a limiting groove 105, and the model connecting member 300 further includes a limiting rib 330, and the limiting rib 330 is connected to the contact plate 310;

[0145] The limiting rib 330 is inserted into the limiting groove 105 .

[0146] Reference number 24. A model support device according to reference number 1, wherein:

[0147] There are multiple connected parts 320, and the multiple connected parts 320 are dispersedly arranged on the contact plate 310;

[0148] And / or, the connected member 320 is disposed on the limiting rib 330 .

[0149] Reference number 25. The model support device according to reference number 1, wherein the model support device further comprises:

[0150] At least one magnetic member 700 is connected to the main body 100 . The material of the contact plate 310 includes a magnetic material. The magnetic member 700 is used to magnetically attract the contact plate 310 .

[0151] Reference number 26. A model support device according to reference number 1, wherein:

[0152] The model connector 300 further includes two handles 340 , and the two handles 340 are respectively connected to opposite sides of the contact plate 310 ;

[0153] The handle 340 is perpendicular to the contact plate 310 , and the handle 340 is used for slidingly contacting the main body 100 .

[0154] Reference numeral 27. A model support device according to reference numeral 26, wherein:

[0155] The model connector 300 further includes a reinforcing plate 350 , which includes a first connecting surface and a second connecting surface. The first connecting surface and the second connecting surface are perpendicular to each other. The first connecting surface is connected to the contact plate 310 , and the second connecting surface is connected to the handle 340 .

[0156] Reference number 28. A model support device according to reference number 1, wherein:

[0157] At least one liquid conducting hole is formed on the contact plate 310 .

[0158] Label 29. A 3D printer, comprising a model supporting device according to any one of the above labels 1-28.

[0159] The above is only a specific implementation 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 model support device for 3D printing, characterized in that: The model supporting device comprises: main body; A hanging mechanism, the hanging mechanism comprising a hanging assembly, the hanging assembly being movably connected to the main body; A model connecting member, the model connecting member comprising a contact plate and a connected member, the connected member being connected to the contact plate, the contact plate being used to connect the model, and the contact plate being further used to deform under external force; The hanging assembly is used to hang the connected member to fix the relative position of the contact plate and the main body.

2. The model support device according to claim 1, characterized in that: The position of the hook assembly includes a hook position and a release position, and the hook assembly is used to move between the hook position and the release position under the action of an external force; When the hanging assembly is located at the releasing position, the hanging assembly releases the connected member, and when the hanging assembly is located at the hanging position, the hanging assembly hangs the connected member.

3. The model support device according to claim 2, characterized in that: The contact plate is in contact with the main body at least when the hanging assembly is located at the hanging position.

4. The model supporting device according to claim 2, characterized in that: The hanging assembly comprises a movable plate and at least one hanging joint, the movable plate is movably connected to the main body, and the hanging joint is connected to the movable plate; The hanging joint is used for hanging the connected part.

5. The model supporting device according to claim 4, characterized in that: The number of the hooking joints and the connected parts are both multiple, and the hooking joints correspond to the connected parts one by one; Alternatively, there are multiple hooking joints, and at least two of the hooking joints are hooked to the same connected member; Alternatively, the number of the connected parts is multiple, and the hanging joint hangs at least two of the connected parts.

6. The model supporting device according to claim 4, characterized in that: The hanging joint comprises a connecting seat and at least one hook, wherein the connecting seat is connected to the movable plate, the hook is rotatably connected to the connecting seat, and the hook is used to hang the connected member.

7. The model supporting device according to claim 6, characterized in that: The number of the hooks is at least two, at least two of the hooks are located at different sides of the connected member, and at least two of the hooks are used to hook the connected member from different sides of the connected member.

8. The model supporting device according to claim 6, characterized in that: The main body is provided with an action hole, the hook joint is connected to the action hole, and the hole wall of the action hole is used to interact with the hook so that the hook moves to release or hook the connected member; The active hole comprises a tightening area and an open area, the open area is closer to the contact plate than the tightening area, the inner diameter of the open area decreases in a direction away from the contact plate, and the inner diameter of the tightening area is smaller than the inner diameter of the open area; When the hook assembly is located at the release position, the hook abuts against the inner wall of the open area; when the hook assembly is located at the hook position, the hook interacts with the tightening area.

9. The model supporting device according to claim 8, characterized in that: The main body comprises a sealing ring, the sealing ring is at least partially inserted into the working hole, a sliding hole is opened on the sealing ring, and the connecting seat is slidably connected with the sliding hole; The main body also includes a sealing ring gland, which contacts the sealing ring to fix the position of the sealing ring.

10. The model supporting device according to claim 8, characterized in that: The main body is provided with an active inner cavity, the movable plate is located in the active inner cavity, and the active hole is communicated with the active inner cavity; Alternatively, the main body includes a lower shell and an upper shell, the lower shell and the upper shell enclose an active inner cavity, the movable plate is located in the active inner cavity, the lower shell is provided with the active hole, and the active hole is communicated with the active inner cavity.

11. The model supporting device according to claim 6, characterized in that: The hook joint further includes a first elastic member, which is connected to at least the hook, and is used to apply an elastic force to the hook to move the hook away from the connected member, so that the hook releases the connected member.

12. The model supporting device according to claim 11, characterized in that: The number of the hooks is at least two, and the first elastic member is located between at least two of the hooks.

13. The model supporting device according to claim 6, characterized in that: The hook includes a hanging end, the hanging end is bent toward the connected part, the connected part includes a hanging groove, when the hanging assembly is located at the hanging position, the hanging end extends into the hanging groove, and the hanging end is used to interact with the groove wall of the hanging groove to limit the connected part.

14. The model supporting device according to claim 2, characterized in that: The model supporting device also includes: a second elastic member; The second elastic member is located between the main body and the hanging assembly, and is used to apply elastic force to the hanging assembly to move the hanging assembly toward the hanging position.

15. The model supporting device according to claim 2, characterized in that: The main body includes one of a first limiting member and a second limiting member, the hanging assembly includes the other of the first limiting member and the second limiting member, and the first limiting member is slidably connected to the second limiting member to limit the moving direction of the hanging assembly.

16. The model supporting device according to claim 2, characterized in that: The model supporting device also includes: A moving assembly is connected to the main body and the hanging assembly respectively, and is used to apply force to drive the hanging assembly to move between the release position and the hanging position.

17. The model supporting device according to claim 16, characterized in that: An active inner cavity is provided on the main body, and at least a part of the structure of the hanging assembly is located in the active inner cavity; The main body is also provided with an operating port, which is communicated with the moving inner cavity, and the moving component is connected with the hanging component through the operating port.

18. The model supporting device according to claim 16, characterized in that: The moving assembly comprises an action wheel and a rotating handle, wherein the rotating handle is rotatably connected to the main body, the action wheel is connected to the rotating handle, the action wheel comprises a first end and a second end, and the distance between the first end of the action wheel and the rotating axis of the action wheel is greater than the distance between the second end of the action wheel and the rotating axis of the action wheel; The rotating handle is used to apply force to drive the action wheel to rotate around the rotating shaft so that the first end or the second end of the action wheel abuts against the hanging assembly. When the first end of the action wheel abuts against the hanging assembly, the hanging assembly is located in the released position, and when the second end of the action wheel abuts against the hanging assembly, the hanging assembly is located in the hanging position.

19. The model support device according to claim 18, characterized in that: The main body further comprises a steering restriction member, which is located at one side of the rotating handle and is used to act with the rotating handle to restrict the rotating direction of the rotating handle.

20. The model support device according to claim 16, characterized in that: The hooking mechanism also includes an action plate and a buffer elastic member. The buffer elastic member is arranged between the action plate and the hooking assembly. The moving assembly is used to act with the action plate to drive the hooking assembly to move between the hooking position and the release position.

21. The model support device according to claim 20, characterized in that: The hanging mechanism further comprises a connecting block, the connecting block is connected to the hanging assembly, and the buffer elastic member is connected to the connecting block; The connecting block is provided with a spring cavity, and a partial structure of the buffer elastic member is embedded in the spring cavity.

22. The model support device according to claim 20, characterized in that: The hanging mechanism also includes a third limit member, which is connected to one of the action plate and the hanging assembly. The action plate and the hanging assembly are provided with a fourth limit member, and the third limit member is slidably connected to the fourth limit member to limit the moving direction of the action plate.

23. The model support device according to claim 1, characterized in that: The main body is provided with a limiting groove, and the model connecting member further comprises a limiting rib, and the limiting rib is connected to the contact plate; The limiting rib is inserted into the limiting groove.

24. The model support device according to claim 1, characterized in that: There are multiple connected parts, and the multiple connected parts are distributed on the contact plate; And / or, the connected member is arranged on the limiting rib.

25. The model support device according to claim 1, characterized in that: The model supporting device also includes: At least one magnetic attraction component is connected to the main body, the material of the contact plate includes magnetic material, and the magnetic attraction component is used to magnetically attract the contact plate.

26. The model support device according to claim 1, characterized in that: The model connecting member further comprises two handles, and the two handles are respectively connected to opposite sides of the contact plate; The handle is perpendicular to the contact plate, and is used for slidingly abutting against the main body.

27. The model support device according to claim 26, characterized in that: The model connector also includes a reinforcement plate, which includes a first connection surface and a second connection surface, the first connection surface is perpendicular to the second connection surface, the first connection surface is connected to the contact plate surface, and the second connection surface is connected to the handle surface.

28. The model support device according to claim 1, characterized in that: At least one liquid conducting hole is formed on the contact plate.

29. A 3D printer, characterized in that: A model supporting device comprising any one of claims 1-28.

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