Hydrogel 3D printing forming device

Abstract

The application discloses a kind of hydrogel 3D printing forming devices, belong to additive manufacturing technical field, including box and printer body, printer body is fixedly installed in the bottom inner wall of box, protective assembly is installed in the one side of box, the bottom inner wall of box is fixedly connected with mounting plate, two symmetrically arranged insertion slots are formed in the upper end of mounting plate, two insertion slots are all inserted with plugboard, the upper end of two plugboards is fixedly connected with the supporting plate, and clamping assembly is installed in the inside of mounting plate;The application realizes the automatic opening and closing of protection plate by protective assembly, isolates ultraviolet protection operator during printing, and is automatically opened after printing to facilitate taking, the opening and closing of protection plate is linked with clamping assembly, is automatically locked when closing supporting plate to ensure printing accuracy, is automatically unlocked when opening to facilitate taking out supporting plate soaking demoulding, limiting component is preliminary to supporting plate when plugboard is inserted Limit, ensure that clamping rod is accurately clamped, improve the reliability and consistency of supporting plate installation.

Description

Technical Field

[0001] This invention relates to the field of additive manufacturing technology, and more specifically, to a hydrogel 3D printing molding apparatus. Background Technology

[0002] 3D printing is an additive manufacturing technology that constructs three-dimensional objects by stacking materials layer by layer based on digital model files. Among them, extrusion 3D printing uses a nozzle to extrude material in the form of continuous lines and stack them layer by layer to form a shape. It has advantages such as simple structure, low cost and wide material compatibility. It is one of the most commonly used methods for hydrogel printing. Hydrogel 3D printing is a special 3D printing technology that uses hydrogel as the printing material. Hydrogel is a three-dimensional hydrophilic polymer network with extremely high water content. It has the characteristics of being soft, easily deformable and having low mechanical strength.

[0003] Existing hydrogel 3D printing devices typically require ultraviolet light irradiation to induce photocrosslinking in order to quickly solidify and shape the hydrogel material. However, ultraviolet light poses a clear risk of harm to human skin and eyes. Some devices rely on operators to manually irradiate the material with ultraviolet lamps, exposing the operator directly to ultraviolet light. Other devices, although equipped with protective structures, still require manual operation to open and close the protective plates. Furthermore, the tray must remain absolutely stable during the hydrogel printing process to ensure the accuracy of layer-by-layer stacking. Therefore, the tray is usually secured with bolts. After printing, each bolt must be unscrewed before the tray can be removed for material removal, increasing the complexity of the operation and introducing the risk of human error.

[0004] Therefore, we have made improvements to this and proposed a hydrogel 3D printing molding device. Summary of the Invention

[0005] In view of the above-mentioned problems in the existing technology, the purpose of the present invention is to provide a hydrogel 3D printing molding device.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: a hydrogel 3D printing molding device, including a box and a printer body, the printer body is fixedly installed on the inner wall of the bottom of the box, a protective component is installed on one side of the box, an installation plate is fixedly connected to the inner wall of the bottom of the box, two symmetrically arranged slots are opened at the upper end of the installation plate, an insert plate is inserted into each of the two slots, a support plate is fixedly connected to the upper end of the two insert plates, a snap-fit ​​component is installed inside the installation plate, and two symmetrically arranged limiting components are installed inside the installation plate, the two limiting components corresponding to the two slots respectively.

[0007] Preferably, the protective component includes two fixed plates fixedly connected to one side of the housing. The two fixed plates are symmetrically arranged. Each of the two fixed plates has a sliding groove. Each sliding groove has a sliding block slidably connected to its inner wall. A protective plate is fixedly connected between the two sliding blocks.

[0008] Preferably, one of the sliding grooves is rotatably connected to the inner wall of the sliding groove, and the other sliding groove is fixedly connected to the inner wall of the sliding groove. One of the sliding blocks is threaded onto the outside of the one-way screw, and the other sliding block is slidably fitted onto the outside of the guide rod. A motor is fixedly connected to the side wall of the fixed plate where the one-way screw is provided. The output end of the motor rotates through the fixed plate and is fixedly connected to one end of the one-way screw.

[0009] Preferably, the snap-fit ​​assembly includes a rotating cavity inside the mounting plate, a movable groove is provided on one side of the inner wall of each of the two slots, the two movable grooves are symmetrically arranged, a snap-fit ​​rod is slidably connected to the inner wall of each of the two movable grooves, a snap-fit ​​groove is provided on the other side of the inner wall of each of the two slots, the two snap-fit ​​grooves are symmetrically arranged, the two snap-fit ​​rods are respectively engaged with the two snap-fit ​​grooves, a one-way screw is rotatably connected to the inner wall of each of the two movable grooves, the two one-way screws have opposite thread directions, the two snap-fit ​​rods are respectively threaded onto the outside of the two one-way screws, and a rack is fixedly connected to one side of the protective plate.

[0010] Preferably, a worm gear and a worm are rotatably connected to the inner wall of the rotating cavity, the worm gear and the worm mesh with each other, the two ends of the worm gear respectively rotatably penetrate the inner walls on both sides of the rotating cavity, the two ends of the worm gear are respectively fixedly connected to one end of two one-way screws, a spur gear is rotatably connected to one side of the mounting plate, the output end of the spur gear rotatably penetrates the mounting plate and is fixedly connected to one end of the worm, and the spur gear and the rack mesh with each other.

[0011] Preferably, the limiting component includes a receiving cavity formed inside the mounting plate, a plurality of springs are fixedly connected to the inner wall of the receiving cavity, a sliding plate is slidably connected to the inner wall of the receiving cavity, the sliding plate is fixedly connected to one end of the plurality of springs, and a wedge block is fixedly connected to the end of the sliding plate away from the springs. The wedge block slides through the inner wall of the receiving cavity and slides inside the slot.

[0012] Preferably, the protective plate has an observation port, and a transparent isolation plate is fixedly connected to the inner wall of the observation port. The transparent isolation plate is an acrylic plate that has been treated with UV.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The protective component of this invention uses a motor to drive a one-way screw to rotate, which in turn moves a sliding block along a sliding groove, thereby achieving automatic opening and closing of the protective plate. During the printing process, the protective plate is in the closed state, which can effectively block the ultraviolet light emitted by the ultraviolet lamp and prevent ultraviolet leakage from causing harm to the operator. After printing is completed, the protective plate automatically opens, making it easy for the user to remove the tray and printed parts. The entire opening and closing process does not require manual operation, which not only improves the convenience of use, but also avoids the risk of ultraviolet exposure that may be caused by manual operation.

[0014] 2. When the protective plate of this invention is closed, the rack on the protective plate meshes with the spur gear, driving the worm and worm wheel to rotate, which in turn drives two unidirectional screws with opposite thread directions to rotate synchronously. This causes the two locking rods to engage in their corresponding slots, achieving automatic locking and fixing of the tray. This ensures that the tray will not shift during printing, guaranteeing printing accuracy. After printing is completed, the protective plate automatically opens, the rack drives the spur gear to rotate in the opposite direction, and the locking rods slide out of the slots, automatically releasing the fixing of the tray. The user can then pull the tray out of the box for easy, non-destructive removal of the printed parts by immersion. The opening and closing of the protective plate is linked to the locking and unlocking of the tray, eliminating the need for additional operating steps and significantly improving operating efficiency and printing reliability.

[0015] 3. During the insertion of the insert plate into the slot, one end of the insert plate contacts the inclined surface of the wedge block, pushing the wedge block to compress the spring and retract into the receiving cavity. When the insert plate is fully inserted into the slot, the spring force pushes the wedge block against the side wall of the insert plate, achieving initial positioning and fixation of the tray. Thus, before the snap-fit ​​assembly completes the final locking, the tray is stably restricted in the designated position and will not shake or shift due to the gap between the insert plate and the slot. This ensures that the snap-fit ​​rod can accurately align with the slot and snap in smoothly, improving the reliability and consistency of tray installation. Attached Figure Description

[0016] Figure 1 A schematic diagram of the main structure of a hydrogel 3D printing molding device provided in this application; Figure 2 A schematic diagram of the protective component structure of a hydrogel 3D printing molding device provided in this application; Figure 3 A schematic diagram of the slot and insert structure of a hydrogel 3D printing molding device provided in this application; Figure 4 A schematic diagram of the snap-fit ​​component structure of a hydrogel 3D printing molding device provided in this application; Figure 5 A schematic diagram of a rack structure for a hydrogel 3D printing molding device provided in this application; Figure 6A schematic diagram of a spur gear structure for a hydrogel 3D printing molding device provided in this application; Figure 7 A schematic diagram of the limiting component structure of a hydrogel 3D printing molding device provided in this application.

[0017] In the diagram: 1. Housing; 2. Printer body; 3. Protective components; 301. Fixing plate; 302. Sliding groove; 303. Sliding block; 304. Protective plate; 305. One-way screw; 306. Guide rod; 307. Motor; 4. Mounting plate; 5. Slot; 6. Insert plate; 7. Support plate; 8. Snap-fit ​​assembly; 801. Rotating cavity; 802. Moving groove; 803. Snap-fit ​​rod; 804. Snap-fit ​​slot; 805. One-way screw; 806. Rack; 807. Worm gear; 808. Worm; 809. Spur gear; 9. Limiting assembly; 901. Receiving cavity; 902. Spring; 903. Sliding plate; 904. Wedge block; 10. Transparent isolation plate; 11. Ultraviolet lamp; 12. Control panel. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0019] Please see Figures 1-7 As shown, the present invention provides a technical solution: a hydrogel 3D printing molding device, including a housing 1 and a printer body 2. The printer body 2 is fixedly installed on the bottom inner wall of the housing 1. A protective component 3 is installed on one side of the housing 1. An installation plate 4 is fixedly connected to the bottom inner wall of the housing 1. Two symmetrically arranged slots 5 are opened at the upper end of the installation plate 4. Insert plates 6 are inserted into both slots 5. A support plate 7 is fixedly connected to the upper end of the two insert plates 6. A snap-fit ​​component 8 is installed inside the installation plate 4. Two symmetrically arranged limiting components 9 are installed inside the installation plate 4. The two limiting components 9 correspond to the two slots 5 respectively.

[0020] Furthermore, the housing 1 provides a closed printing space for the printer body 2, isolating it from external ambient light and preventing ultraviolet leakage. The printer body 2 is installed on the bottom inner wall of the housing 1 and is responsible for extruding and curing the hydrogel material to complete the printing. The protective component 3 is installed on one side of the housing 1 to block ultraviolet rays during printing, protect the operator, and open after printing for easy removal of parts. The mounting plate 4 is fixed to the bottom inner wall of the housing 1, providing a supporting base for the installation of the tray 7. The slot 5 is opened at the upper end of the mounting plate 4 to accommodate the insert plate 6 and provide guidance and positioning for the installation of the tray 7. After the insert plate 6 is inserted into the slot 5, the tray 7 is fixed to the mounting plate. 4. The tray 7 is detachably connected and is used to support the printed hydrogel molded part. After printing, it can be pulled out from the mounting plate 4 together with the insert plate 6, so that the user can soak and demold the tray 7 together with the printed part. The snap-fit ​​component 8 is installed inside the mounting plate 4 and is used to lock the insert plate 6 in the slot 5 after the tray 7 is inserted to prevent the tray 7 from shifting during the printing process. The limiting component 9 is installed inside the mounting plate 4 and corresponds to the two slots 5 respectively. It is used to initially limit and fix the insert plate 6 when it is inserted into the slot 5, so that the tray 7 remains stable before the snap-fit ​​component 8 is locked, and provides a positioning basis for the accurate locking of the snap-fit ​​component 8.

[0021] The printer body 2 is existing technology. The printer body 2 adopts an extrusion structure and mainly consists of a print head, a feeding system, a motion mechanism, and a control system. The feeding system delivers hydrogel material to the print head. Under the drive of the motion mechanism, the print head extrudes the solidified material layer by layer along a preset path. The control system coordinates the actions of each component to achieve the layer-by-layer deposition and molding of a three-dimensional structure. The specific circuit connections, wiring layout, control methods, electrical component selection, and installation and debugging methods of the printer body 2 are all content that can be obtained by those skilled in the art based on common knowledge, and will not be described in detail here.

[0022] In the preferred embodiment of this technical solution, please refer to Figure 1 and Figure 2 As shown, the protective component 3 includes two fixed plates 301 fixedly connected to one side of the housing 1. The two fixed plates 301 are symmetrically arranged. Each fixed plate 301 has a sliding groove 302. The inner walls of the two sliding grooves 302 are slidably connected to sliding blocks 303. A protective plate 304 is fixedly connected between the two sliding blocks 303. A one-way screw 305 is rotatably connected to the inner wall of one sliding groove 302, and a guide rod 306 is fixedly connected to the inner wall of the other sliding groove 302. One sliding block 303 is threaded onto the outside of the one-way screw 305, and the other sliding block 303 is slidably fitted onto the outside of the guide rod 306. A motor 307 is fixedly connected to the side wall of the fixed plate 301 with the one-way screw 305. The output end of the motor 307 rotates through the fixed plate 301 and is fixedly connected to one end of the one-way screw 305.

[0023] Furthermore, the protective component 3 includes two fixed plates 301, which are symmetrically arranged and fixedly connected to one side of the housing 1, providing an installation base for the sliding of the protective plate 304. Each fixed plate 301 has a sliding groove 302, which accommodates a sliding block 303 and provides guidance and limitation for the sliding of the protective plate 304. Sliding blocks 303 are slidably connected to the inner walls of both sliding grooves 302. The sliding blocks 303 move along the sliding grooves 302, causing the protective plate 304 to move synchronously. The protective plate 304 is fixedly connected between the two sliding blocks 303. When the protective plate 304 slides with the sliding blocks 303, it closes the opening of the housing 1 to block ultraviolet rays. When opened, the box 1 is exposed to facilitate the placement and removal of the tray 7. One of the sliding grooves 302 has a one-way screw 305 rotatably connected to its inner wall. When the one-way screw 305 rotates, it drives the sliding block 303, which is threadedly engaged with it, to move along the sliding groove 302, providing driving force for the sliding of the protective plate 304. The other sliding groove 302 has a guide rod 306 fixedly connected to its inner wall. The guide rod 306 provides sliding guidance for the sliding block 303 on the other side, ensuring that the two sides of the protective plate 304 slide synchronously and smoothly. The motor 307 provides the power source for the automatic sliding of the protective plate 304. When the motor 307 starts, it drives the one-way screw 305 to rotate forward and reverse, thereby realizing the automatic closing and opening of the protective plate 304.

[0024] In the preferred embodiment of this technical solution, please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the snap-fit ​​assembly 8 includes a rotating cavity 801 formed inside the mounting plate 4. Each of the two slots 5 has a movable groove 802 on one side of its inner wall, and the two movable grooves 802 are symmetrically arranged. A snap-fit ​​rod 803 is slidably connected to the inner wall of each of the two movable grooves 802. Each of the two slots 5 has a snap-fit ​​groove 804 on the other side of its inner wall, and the two snap-fit ​​grooves 804 are symmetrically arranged. The two snap-fit ​​rods 803 respectively engage with the two snap-fit ​​grooves 804. A one-way screw 805 is rotatably connected to the inner wall of each of the two movable grooves 802. The threads of the two one-way screws 805 are opposite in direction, and the threads of the two snap-fit ​​rods 803 are respectively threaded... A rack 806 is fixedly connected to one side of a protective plate 304, which is sleeved on the outside of two one-way screws 805. A worm gear 807 and a worm 808 are rotatably connected to the inner wall of the rotating cavity 801. The worm gear 807 and the worm 808 mesh with each other. The two ends of the worm gear 807 rotatably pass through the inner walls of both sides of the rotating cavity 801. The two ends of the worm gear 807 are fixedly connected to one end of the two one-way screws 805. A spur gear 809 is rotatably connected to one side of a mounting plate 4. The output end of the spur gear 809 rotatably passes through the mounting plate 4 and is fixedly connected to one end of the worm 808. The spur gear 809 and the rack 806 mesh with each other.

[0025] Furthermore, the rotating cavity 801 is formed inside the mounting plate 4, providing space for the meshing transmission of the worm gear 807 and the worm 808. Each of the two slots 5 has a movable groove 802 on one side of its inner wall. The two movable grooves 802 provide a guide channel for the sliding of the locking rod 803. The locking rod 803 can slide back and forth along the movable groove 802 for insertion and withdrawal from the slot 804. The slot 804 provides a locking engagement position for the locking rod 803. The two locking rods 803 respectively engage with the two slots 804. After the locking rod 803 is embedded in the slot 804, it restricts the movement of the insert plate 6, keeping the tray 7 in a fixed position during printing. One-way screws 805 are rotatably connected to the inner wall of the groove 802. When the one-way screws 805 rotate, they drive the locking rods 803 to move axially along the movable groove 802, providing helical driving force for the locking action. The threads of the two one-way screws 805 are opposite, so that when the two screws rotate synchronously, they drive the two locking rods 803 to move towards and away from each other, realizing simultaneous locking and release on both sides. The two locking rods 803 are threaded onto the outside of the two one-way screws 805. When the one-way screws 805 rotate, the locking rods 803 translate along their axial direction, thereby completing the engagement and disengagement with the groove 804. The protective plate 304 is fixedly connected to one side. A rack 806 is attached, which moves horizontally synchronously with the protective plate 304 along the extension direction of the sliding groove 302, converting the linear displacement of the protective plate 304 into the rotational motion of the spur gear 809. A worm gear 807 and a worm 808 mesh with each other, with the worm 808 driving the worm gear 807 to rotate. This transmits power while simultaneously reducing speed, increasing torque, and self-locking. Both ends of the worm gear 807 rotate through the inner walls of both sides of the rotating cavity 801. When the worm gear 807 rotates, it outputs power from both ends to two one-way screws 805. The rotation of the worm gear 807 drives the two one-way screws 805 to rotate synchronously, ensuring the operation of the locking rods 803 on both sides. In a consistent manner, a spur gear 809 is rotatably connected to one side of the mounting plate 4. The spur gear 809 meshes with the rack 806. When the rack 806 moves, it drives the spur gear 809 to rotate forward and backward. The output end of the spur gear 809 rotates through the mounting plate 4 and is fixedly connected to one end of the worm gear 808. When the spur gear 809 rotates, it drives the worm gear 808 to rotate. The power is transmitted through the worm wheel 807 to the one-way screw 805, which finally drives the locking rod 803 to engage and disengage from the slot 804. This ensures that when the protective plate 304 is closed, the support plate 7 is automatically locked, and when the protective plate 304 is opened, the support plate 7 is automatically unlocked, realizing the linkage between the locked states of the protective plate 304 and the support plate 7.

[0026] In the preferred embodiment of this technical solution, please refer to Figure 3 and Figure 7As shown, the limiting component 9 includes a receiving cavity 901 opened inside the mounting plate 4. Multiple springs 902 are fixedly connected to the inner wall of the receiving cavity 901. A sliding plate 903 is slidably connected to the inner wall of the receiving cavity 901. The sliding plate 903 is fixedly connected to one end of the multiple springs 902. A wedge block 904 is fixedly connected to the end of the sliding plate 903 away from the springs 902. The wedge block 904 slides through the inner wall of the receiving cavity 901 and slides inside the slot 5.

[0027] Furthermore, the receiving cavity 901 is formed inside the mounting plate 4, providing space for the installation of the spring 902 and the sliding plate 903. The spring 902 provides elastic force for the reset of the wedge block 904. The sliding plate 903 slides along the inner wall of the receiving cavity 901, causing the wedge block 904 to move synchronously and compress and release the spring 902. The sliding plate 903 resets under the elastic force of the spring 902, thereby pushing the wedge block 904 to press against the insert plate 6. The tilting of the wedge block 904... When the insert plate 6 is inserted, the inclined surface is pushed back into the receiving cavity 901. After the insert plate 6 is fully inserted, it abuts against the side wall of the insert plate 6 under the action of the spring 902, realizing the initial limiting and fixing of the insert plate 6. The wedge block 904 slides through the inner wall of the receiving cavity 901 and slides inside the slot 5. After the wedge block 904 extends into the slot 5, it abuts against the side wall of the insert plate 6, so that the support plate 7 remains stable before the locking assembly 8 is locked, providing a positioning basis for the accurate locking of the locking assembly 8.

[0028] In the preferred embodiment of this technical solution, please refer to Figure 1 As shown, an observation port is provided on the protective plate 304, and a transparent isolation plate 10 is fixedly connected to the inner wall of the observation port. The transparent isolation plate 10 is an acrylic plate that has been treated with UV.

[0029] Furthermore, an observation port is provided on the protective plate 304, which provides the operator with a channel to observe the printing process inside the chamber 1 without opening the protective plate 304. A transparent isolation plate 10 is fixedly connected to the inner wall of the observation port. The transparent isolation plate 10 closes the observation port, ensuring that visible light can pass through to observe the printing process while blocking ultraviolet rays from leaking out of the observation port. The transparent isolation plate 10 is a UV-treated acrylic plate. The UV-treated acrylic plate has both good visible light transmittance and ultraviolet blocking ability, allowing the operator to clearly observe the hydrogel printing process while avoiding ultraviolet rays from harming the operator.

[0030] In the preferred embodiment of this technical solution, please refer to Figure 1 As shown, an ultraviolet lamp 11 is installed on the printer body 2, and a control panel 12 is installed on one side of the housing 1.

[0031] Furthermore, an ultraviolet lamp 11 is installed on the printer body 2 to irradiate the hydrogel material extruded from the printer body 2, causing the hydrogel material to rapidly cross-link and solidify under the action of ultraviolet light, thereby forming layer by layer. The control panel 12 is installed on one side of the housing 1, which is used by the operator to set and adjust printing parameters, control the start and stop of the printer body 2, and control the forward and reverse rotation of the motor 307 in the protective assembly 3, so as to realize centralized operation and control of the printing process and the opening and closing of the protective plate 304.

[0032] Working principle: When installing the tray 7, the user first aligns the two insert plates 6 at the lower end of the tray 7 with the two slots 5 on the mounting plate 4 and inserts them. As the insert plates 6 go deeper into the slots 5, one end of the insert plate 6 contacts the inclined surface of the wedge block 904 in the limiting component 9, pushing the wedge block 904 to compress the spring 902 and retract into the receiving cavity 901. When the insert plate 6 is fully inserted into the slot 5, the elastic force of the spring 902 pushes the sliding plate 903 and the wedge block 904 to reset. The wedge block 904 abuts against the side wall of the insert plate 6, realizing the initial limiting and fixing of the tray 7, stabilizing the tray 7 in the designated position, and providing a positioning basis for the subsequent locking of the snap-fit ​​component 8. After the tray 7 is installed, the operating motor 307 drives the one-way screw 305 to rotate, which in turn drives the two sliding blocks 303 to move the protective plate 304, thus gradually closing the opening on one side of the box 1. During the closing process of the protective plate 304, the rack 806 fixed on one side of the protective plate 304 moves accordingly and meshes with the spur gear 809 installed on one side of the mounting plate 4, driving the spur gear 809 to rotate. The spur gear 809 drives the worm gear 808 to rotate, and the worm gear 808 drives the worm wheel 807 to rotate. The two ends of the worm wheel 807 drive the two one-way screws 805 with opposite thread directions to rotate synchronously. The two locking rods 803 are threaded on the outside of the two one-way screws 805. Under the guidance of the moving groove 802, the two locking rods 803 finally engage with the locking grooves 804 opened on the inner wall of the other side of the two slots 5, thereby locking and fixing the tray 7. At this time, the protective plate 304 is completely closed, and the tray 7 is firmly fixed on the mounting plate 4. Then printing can be performed. After printing, the motor 307 is reversed, driving the one-way screw 305 to rotate in the opposite direction. This causes the protective plate 304 to move horizontally along the extension direction of the sliding groove 302, exposing the opening of the housing 1. During the opening of the protective plate 304, the rack 806 moves in the opposite direction, driving the spur gear 809 to rotate in the opposite direction. This, in turn, drives the two one-way screws 805 to rotate in the opposite direction via the worm gear 808 and worm wheel 807. The two locking rods 803 slide out of the locking slot 804, releasing the locking of the tray 7. The user can then pull the tray 7, along with its lower insert plate 6, out of the slot 5 of the mounting plate 4 and remove the tray 7 and the printed parts from the housing 1. Subsequently, the tray 7 and the printed parts can be immersed in a suitable solution to allow the hydrogel printed parts to detach naturally from the surface of the tray 7, achieving non-destructive demolding.

[0033] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0034] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A hydrogel 3D printing molding device, comprising a housing (1) and a printer body (2), wherein the printer body (2) is fixedly installed on the inner wall of the bottom of the housing (1), characterized in that, A protective component (3) is installed on one side of the box (1). An installation plate (4) is fixedly connected to the inner wall of the bottom of the box (1). Two symmetrically arranged slots (5) are opened at the upper end of the installation plate (4). Insert plates (6) are inserted into both slots (5). A support plate (7) is fixedly connected to the upper end of the two insert plates (6). A snap-fit ​​component (8) is installed inside the installation plate (4). Two symmetrically arranged limiting components (9) are installed inside the installation plate (4). The two limiting components (9) correspond to the two slots (5) respectively.

2. The hydrogel 3D printing molding device according to claim 1, characterized in that, The protective component (3) includes two fixed plates (301) fixedly connected to one side of the housing (1). The two fixed plates (301) are symmetrically arranged. Each of the two fixed plates (301) has a sliding groove (302). The inner walls of the two sliding grooves (302) are slidably connected to sliding blocks (303). A protective plate (304) is fixedly connected between the two sliding blocks (303).

3. The hydrogel 3D printing molding device according to claim 2, characterized in that, One of the sliding grooves (302) is rotatably connected to the inner wall of a one-way screw (305), and the other sliding groove (302) is fixedly connected to the inner wall of a guide rod (306). One of the sliding blocks (303) is threaded onto the outside of the one-way screw (305), and the other sliding block (303) is slidably fitted onto the outside of the guide rod (306). A motor (307) is fixedly connected to the side wall of the fixing plate (301) on which the one-way screw (305) is provided. The output end of the motor (307) rotatably passes through the fixing plate (301) and is fixedly connected to one end of the one-way screw (305).

4. The hydrogel 3D printing molding device according to claim 2, characterized in that, The snap-fit ​​assembly (8) includes a rotating cavity (801) inside the mounting plate (4). The inner walls of the two slots (5) are provided with moving grooves (802) on one side. The two moving grooves (802) are symmetrically arranged. The inner walls of the two moving grooves (802) are slidably connected with snap-fit ​​rods (803). The inner walls of the two slots (5) are provided with slots (804) on the other side. The two slots (804) are symmetrically arranged. The two snap-fit ​​rods (803) are respectively engaged with the two slots (804). The inner walls of the two moving grooves (802) are rotatably connected with one-way screws (805). The two one-way screws (805) have opposite thread directions. The two snap-fit ​​rods (803) are respectively threaded around the two one-way screws (805). A rack (806) is fixedly connected to one side of the protective plate (304).

5. The hydrogel 3D printing molding apparatus according to claim 4, characterized in that, The inner wall of the rotating cavity (801) is rotatably connected to a worm gear (807) and a worm (808). The worm gear (807) and the worm (808) mesh with each other. The two ends of the worm gear (807) rotatably penetrate the inner walls of both sides of the rotating cavity (801). The two ends of the worm gear (807) are fixedly connected to one end of two one-way screws (805). A spur gear (809) is rotatably connected to one side of the mounting plate (4). The output end of the spur gear (809) rotatably penetrates the mounting plate (4) and is fixedly connected to one end of the worm (808). The spur gear (809) meshes with a rack (806).

6. The hydrogel 3D printing molding device according to claim 1, characterized in that, The limiting component (9) includes a receiving cavity (901) opened inside the mounting plate (4). A plurality of springs (902) are fixedly connected to the inner wall of the receiving cavity (901). A sliding plate (903) is slidably connected to the inner wall of the receiving cavity (901). The sliding plate (903) is fixedly connected to one end of the plurality of springs (902). A wedge block (904) is fixedly connected to the end of the sliding plate (903) away from the springs (902). The wedge block (904) slides through the inner wall of the receiving cavity (901) and slides inside the slot (5).

7. The hydrogel 3D printing molding device according to claim 2, characterized in that, An observation port is provided on the protective plate (304), and a transparent isolation plate (10) is fixedly connected to the inner wall of the observation port. The transparent isolation plate (10) is an acrylic plate that has been treated with UV.

8. The hydrogel 3D printing molding device according to claim 1, characterized in that, The printer body (2) is equipped with an ultraviolet lamp (11), and the control panel (12) is installed on one side of the housing (1).

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