A replaceable product 3D printing platform

Abstract

This invention discloses a replaceable product 3D printing platform, relating to the field of 3D printing technology. It includes a base and a stripping assembly. A dual-axis motor is housed inside the lower end of the base, and one end of the motor is connected to a worm gear reducer via a one-way coupling. The output shaft of the worm gear reducer is connected to a rotating table. The stripping assembly is located at the other end of the dual-axis motor and includes a bevel gear set. This invention achieves continuous printing operations by using a dual-axis motor-driven automatic substrate changing system. Simultaneously, the worm gear reducer's self-locking structure ensures platform positioning accuracy. When unloading is required, it drives a push rod to deform the spring steel substrate, significantly reducing product adhesion and improving the separation effect between the product and the substrate. Operators can easily remove the part with a simple pull, avoiding traditional disassembly procedures and enabling continuous 3D printing operations.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, specifically to a replaceable product 3D printing platform. Background Technology

[0002] The working principle of a 3D printer is basically the same as that of a regular printer. It uses computer control to stack "printing material" layer by layer, eventually turning the blueprint on the computer into a physical object. This technology is often used in mold making, industrial design and other fields to make models or to directly manufacture some products. The printing platform is an important part of a 3D printer. It is the basic plane that supports the printed object during the printing process and directly affects the printing quality.

[0003] In the current 3D printing process, the printing platform needs to be heated to ensure a strong bond between the model and the platform. However, when demolding is required after printing, the model must be allowed to cool down before the bond weakens. Therefore, if you want to continue using the 3D printing equipment, you need to manually disassemble and replace the printing platform, which is quite labor-intensive when producing products continuously. Summary of the Invention

[0004] The purpose of this invention is to provide a replaceable product 3D printing platform to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A replaceable product 3D printing platform includes a base and a stripping assembly. A dual-axis motor is housed inside the lower end of the base, and one end of the dual-axis motor is connected to a worm gear reducer via a one-way coupling. The output shaft of the worm gear reducer is connected to a rotating table. The stripping assembly is located at the other end of the dual-axis motor and includes a bevel gear set. The other end of the dual-axis motor is connected to the bevel gear set via a one-way coupling, and the top of the bevel gear set is connected to a rotating disk via a rotating shaft. A protruding post is fixed to one end of the top of the rotating disk, and the protruding post... A top plate is slidably connected to the outer side, and a guide frame is slidably connected to the inside of the top plate. A damping shaft is rotatably connected to the outer end of the rotating platform, and a heating seat is fixed to one end of the damping shaft. A carrying plate is provided on one side of the heating seat, and side plates are arranged on both sides of the carrying plate. A sliding plate is rotatably connected to one end of the side plate, and sliding rods are slidably connected to both ends of the sliding plate. A compression spring is sleeved on the outside of the sliding rod, and the compression spring is in contact with the heating seat. A support frame is provided at the bottom of the heating seat, and a top rod is slidably connected to the inside of the support frame.

[0007] Furthermore, the slide rod is fixedly connected to the heating base, and the top rod is slidably connected to the heating base, with a radial flange in the middle of the top rod.

[0008] Furthermore, the other end of the damping shaft is connected to a flipping assembly, and the flipping assembly includes a bevel gear. The other end of the damping shaft is equipped with a bevel gear, the upper part of the base is equipped with a rack, and the upper outer end of the base is fixed with a limit ring.

[0009] Furthermore, the top of the limiting ring is provided with a pulley seat, and the top of the pulley seat is connected with a return spring. The return spring is provided with a pin inside, and the pin is fixedly connected to the pulley seat. The damping shaft has a positioning hole in the middle, and the end of the positioning hole is tapered.

[0010] Furthermore, the pin is slidably connected to the rotating platform, and the bottom of the rotating platform abuts against the top of the return spring.

[0011] Furthermore, a cleaning assembly is connected to one end of the top plate, and the cleaning assembly includes a first toothed plate. The first toothed plate is installed at one end of the top plate, and a double gear meshes on one side of the first toothed plate. A second toothed plate meshes on the upper side of the double gear, and an external toothed nut meshes on the top of the second toothed plate. A screw is connected to the internal thread of the external toothed nut, and a movable seat is installed at one end of the screw. A smooth rod is installed on one side of the movable seat.

[0012] Furthermore, the double gear is rotatably connected to the base, and the guide frame is fixedly connected to the base.

[0013] Furthermore, the bottom protrusion of the second toothed plate is an isosceles trapezoid, and the second toothed plate is slidably connected to the base.

[0014] Furthermore, the external toothed nut is rotatably connected to the base, and the smooth rod is slidably connected to the base.

[0015] Furthermore, a first sliding column is slidably connected to the top of the movable base, a first spring is sleeved on the outer side of the first sliding column, and a connecting plate is connected to the top of the first spring. The connecting plate is fixedly connected to the first sliding column. The connecting plate has an L-shaped cross-section, and a second sliding column is slidably connected inside the connecting plate. A second spring is sleeved on the outer side of the second sliding column, and a scraper seat is connected to one end of the second spring. The scraper seat is fixedly connected to the second sliding column. A waste bin is installed on one side of the base.

[0016] The replaceable product 3D printing platform provided by this invention has the following beneficial effects:

[0017] 1. This invention enables continuous printing operations by using a dual-axis motor-driven automatic plate-changing system. At the same time, the worm gear reducer's self-locking structure ensures the platform's positioning accuracy. When unloading is required, the push rod can be driven to deform the spring steel plate, significantly reducing the product's adhesion and improving the separation effect between the product and the plate. Operators can easily remove the part by simply pulling it out, avoiding the traditional disassembly process and enabling continuous 3D printing operations.

[0018] 2. This invention uses a bevel gear and a limiting ring to automatically flip the carrying plate over to the top of the cleaning component after unloading, facilitating subsequent scraping and cleaning of the carrying plate. After cleaning, when the rotating table continues to rotate, the carrying plate can flip back to its original position under the action of the bevel gear and rack, requiring no additional control and making it more convenient. Furthermore, the limiting ring and the pin are linked to automatically unlock before flipping and automatically lock after flipping, eliminating the need for an additional control system and making it even more convenient.

[0019] 3. This invention drives the external toothed nut to rotate through the linkage mechanism of the top plate, toothed plate, and double gear. Under the limiting action of the base and the guiding action of the guide rod, the screw drives the scraper seat to complete the automatic scraping and cleaning of the surface of the carrier plate, replacing the traditional manual scraper operation, significantly improving safety and work efficiency. The waste bin and the scraper move synchronously to form a closed collection space, effectively preventing debris from splashing and achieving directional recycling. This structural design makes the cleaning action and equipment operation highly coordinated, reducing additional energy consumption. At the same time, the scraper seat is equipped with a dual-spring adaptive system. The first spring continuously applies vertical pressure to ensure that the scraper and the surface of the carrier plate remain dynamically and tightly attached. The second spring is set in an elastic buffer zone. When encountering stubborn attachments, it generates impact inertia through energy storage and release mechanism, which can enhance the instantaneous cleaning force and shake off the residue on the blade head. This dual elastic structure enables the device to have constant pressure cleaning and self-maintenance characteristics, ensuring long-term stable operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the replaceable product 3D printing platform of the present invention.

[0021] Figure 2 This is a bottom-view three-dimensional structural diagram of the replaceable product 3D printing platform of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the unloading component of the replaceable product 3D printing platform of the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the heating seat of the replaceable product 3D printing platform of the present invention.

[0024] Figure 5This is a three-dimensional structural diagram of the flipping component of the replaceable product 3D printing platform of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the cleaning component of the replaceable product 3D printing platform of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the connecting plate of the replaceable product 3D printing platform of the present invention.

[0027] In the diagram: 1. Base; 2. Dual-axis motor; 3. Worm gear reducer; 4. Rotary table; 5. Unloading assembly; 501. Bevel gear set; 502. Rotary disk; 503. Protruding column; 504. Top plate; 505. Guide frame; 506. Damping shaft; 507. Heating seat; 508. Carrying plate; 509. Side plate; 510. Sliding plate; 511. Sliding rod; 512. Compression spring; 513. Support frame; 514. Top rod; 6. Flipping assembly; 601. Bevel gear; 602. Rack 603. Limiting ring; 604. Pulley seat; 605. Return spring; 606. Pin; 607. Positioning hole; 7. Cleaning assembly; 701. First toothed plate; 702. Double gear; 703. Second toothed plate; 704. External toothed nut; 705. Screw; 706. Moving seat; 707. Smooth rod; 708. First sliding column; 709. First spring; 710. Connecting plate; 711. Second sliding column; 712. Second spring; 713. Scraper seat; 714. Waste bin. Detailed Implementation

[0028] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0030] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0031] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0032] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] Please see Figures 1 to 4 The replaceable product 3D printing platform provided by the present invention includes a base 1 and a stripping assembly 5. A dual-axis motor 2 is installed inside the lower end of the base 1, and one end of the dual-axis motor 2 is connected to a worm gear reducer 3 through a one-way coupling. The output shaft of the worm gear reducer 3 is connected to a rotating table 4, and the stripping assembly 5 is located at the other end of the dual-axis motor 2.

[0035] In some embodiments, the unloading assembly 5 includes a bevel gear set 501. The other end of the dual-shaft motor 2 is connected to the bevel gear set 501 via a one-way coupling. The top of the bevel gear set 501 is connected to a rotating disk 502 via a rotating shaft. A protrusion 503 is fixed to one end of the top of the rotating disk 502. A top plate 504 is slidably connected to the outer side of the protrusion 503. A guide frame 505 is slidably connected to the inside of the top plate 504. A damping shaft 506 is rotatably connected to the inner side of the outer end of the rotating table 4. A heating seat 507 is fixed to one end of the damping shaft 506. A load is provided on one side of the heating seat 507. The plate 508 has side plates 509 on both sides. One end of the side plate 509 is rotatably connected to a sliding plate 510. The two ends of the sliding plate 510 are slidably connected to sliding rods 511. A compression spring 512 is sleeved on the outside of the sliding rod 511. The compression spring 512 is in contact with the heating seat 507. A support frame 513 is installed at the bottom of the heating seat 507. A top rod 514 is slidably connected inside the support frame 513. The sliding rod 511 is fixedly connected to the heating seat 507. The top rod 514 is slidably connected to the heating seat 507. A radial flange is provided in the middle of the top rod 514.

[0036] It should be noted that by setting multiple carrier plates 508, after printing the product, the dual-axis motor 2 can be started, which drives the rotating table 4 to rotate through the one-way coupling and worm gear reducer 3. This allows the carrier plate 508 carrying the product to be removed from under the printer, and the carrier plate 508 can be replaced automatically, which is more convenient. At the same time, the one-way coupling at the other end of the dual-axis motor 2 is in an idle state, with no power transmission. The self-locking characteristic of the worm gear reducer 3 can prevent the rotating table 4 from rotating due to external force, ensuring positioning stability. When the product on the carrier plate 508 needs to be removed after cooling, the worm gear reducer 3 can be controlled to rotate in the opposite direction. At this time, under the action of the one-way coupling, there is no transmission between the dual-axis motor 2 and the worm gear reducer 3. The dual-axis motor 2 can drive the bevel gear set 501 to rotate the rotating disk 502, which in turn pushes the top plate 504 to slide on the outside of the guide frame 505 through the convex column 503 and make reciprocating motion.

[0037] When the top plate 504 contacts the top rod 514, the inclined surface of the top plate 504 can press the top rod 514, causing it to move upward. At the same time, since the material of the carrying plate 508 is spring steel, it has a certain deformation capacity. Therefore, when the top rod 514 presses the carrying plate 508, it can deform. Simultaneously, the side plate 509 can rotate, and the sliding plate 510 will slide towards the center on the sliding rod 511, giving the carrying plate 508 a certain deformation space. Therefore, the bending deformation of the carrying plate 508 can reduce the bonding strength between the product and the carrying plate 508. Furthermore, when the top plate 504 moves back and forth, it can push multiple sets of top rods 514 in sequence, thereby changing the position of the protrusion of the carrying plate 508 and further improving the separation effect between the carrying plate 508 and the product.

[0038] Subsequent personnel can easily remove the product by simply pulling it off, without needing to disassemble the carrier plate 508, thus improving the convenience of use. When the top plate 504 separates from the top rod 514, the top rod 514 will move downward under the action of gravity, and the support frame 513 will limit the stroke of the top rod 514. At the same time, the compression spring 512 will reset the sliding plate 510, and the carrier plate 508 will also be straightened under its own elasticity and fit against the heating seat 507, making it convenient for normal heating operation during the next printing.

[0039] Please see Figure 4 and Figure 5 The other end of the damping shaft 506 is connected to a flipping assembly 6, which includes a bevel gear 601. The other end of the damping shaft 506 is equipped with a bevel gear 601. A rack 602 is installed on the upper part of the base 1, and a limit ring 603 is fixed to the upper outer end of the base 1. A pulley seat 604 is provided on the top of the limit ring 603, and a return spring 605 is connected to the top of the pulley seat 604. A pin 606 is provided inside the return spring 605, and the pin 606 is fixedly connected to the pulley seat 604. A positioning hole 607 is opened in the middle of the damping shaft 506, and the end of the positioning hole 607 is tapered. The pin 606 is slidably connected to the rotating table 4, and the bottom of the rotating table 4 abuts against the top of the return spring 605. One end of the top plate 504 is connected to a cleaning assembly 7, which includes a first toothed plate 701.

[0040] When the rotating table 4 rotates, the damping shaft 506 can also drive the bevel gear 601 and the rack 602 to mesh, thereby controlling the loading plate 508 to rotate half a turn. After unloading, the loading plate 508 can be automatically flipped to the top of the cleaning component 7, which is convenient for subsequent scraping and cleaning of the loading plate 508. After cleaning, when the rotating table 4 continues to rotate, the loading plate 508 can be flipped back to its original position under the action of the bevel gear 601 and the rack 602. No additional control is required, which is more convenient.

[0041] Before flipping, the pulley seat 604 can move to the recess of the limiting ring 603, and the return spring 605 will push the pulley seat 604, so that the pin 606 automatically separates from the positioning hole 607, releasing the rotation restriction of the damping shaft 506. After flipping, the pulley seat 604 will be pushed to the protrusion of the limiting ring 603, and can automatically insert into the positioning hole 607 to lock the rotation angle of the damping shaft 506. The end of the positioning hole 607 expands outward, which has a certain guiding and correction function to improve the stability of the carrier plate 508 during operation. Thus, during use, the automatic flipping and locking functions can be realized without adding an additional control system.

[0042] Please see Figure 3 , Figures 6 to 7 A first toothed plate 701 is mounted on one end of the top plate 504, and a double gear 702 meshes with one side of the first toothed plate 701. A second toothed plate 703 meshes with the upper side of the double gear 702, and an external toothed nut 704 meshes with the top of the second toothed plate 703. A screw 705 is threaded into the internal part of the external toothed nut 704, and a movable seat 706 is mounted on one end of the screw 705. A smooth rod 707 is mounted on one side of the movable seat 706. The double gear 702 is rotatably connected to the base 1, and the guide frame 505 is fixedly connected to the base 1. The bottom protrusion of the second toothed plate 703 is an isosceles trapezoid, and the second toothed plate 703 is slidably connected to the base 1. The external toothed nut 704 and... The base 1 is rotatably connected, and the light rod 707 is slidably connected to the base 1. The top of the movable seat 706 is slidably connected to the first sliding column 708. The outer side of the first sliding column 708 is sleeved with the first spring 709, and the top of the first spring 709 is connected to the connecting plate 710. The connecting plate 710 is fixedly connected to the first sliding column 708. The cross-section of the connecting plate 710 is L-shaped, and the inside of the connecting plate 710 is slidably connected to the second sliding column 711. The outer side of the second sliding column 711 is sleeved with the second spring 712, and one end of the second spring 712 is connected to the scraper seat 713. The scraper seat 713 is fixedly connected to the second sliding column 711. A waste bin 714 is placed on one side of the base 1.

[0043] During the reciprocating movement of the top plate 504, the external toothed nut 704 can be rotated via the first toothed plate 701, the double gear 702, and the second toothed plate 703. At this time, the base 1 will limit the position of the external toothed nut 704 and restrict the rotation of the screw 705 via the smooth rod 707 and the movable seat 706. Therefore, when the external toothed nut 704 rotates, the movable seat 706 can be moved via the screw 705, driving the scraper seat 713 above to scrape and clean the surface of the carrier plate 508. This eliminates the need for personnel to operate with a scraper, making it safer and more convenient. At the same time, the waste bin 714 can be used to cover the outside, facilitating the collection of debris. Furthermore, during the scraping and cleaning process, the first spring 709 pushes the connecting plate 710 under the limit of the first sliding column 708, so that the scraper seat 713 can be closely attached to the surface of the carrier plate 508, which is beneficial to improving the cleaning effect. When encountering firmly adhered attachments, the second spring 712 will contract under the action of resistance, so that the pushing force of the scraper seat 713 gradually increases. When the pushing force exceeds the adhesion force threshold and causes the impurities to fall off, the second spring 712 pushes the scraper seat 713 to quickly reset, using inertia to shake off the residual debris, so that the scraper seat 713 has a certain self-cleaning ability, which is beneficial to maintaining the scraping and cleaning effect of the scraper seat 713.

[0044] In summary, when using this product's 3D printing platform, after printing the product, start the dual-axis motor 2, which drives the rotating table 4 to rotate through the one-way coupling and worm gear reducer 3. This allows the carrier plate 508 carrying the product to be removed from under the printer, automatically replacing the carrier plate 508 and facilitating 3D printing on the next carrier plate 508.

[0045] Next, when the product on the carrier plate 508 has cooled down and needs to be removed, the worm gear reducer 3 can be controlled to rotate in the reverse direction. At this time, under the action of the one-way coupling, there is no transmission between the dual-axis motor 2 and the worm gear reducer 3. The dual-axis motor 2 can drive the bevel gear set 501 to rotate the rotating disk 502, thereby pushing the top plate 504 to slide on the outside of the guide frame 505 through the convex post 503 and making reciprocating motion. When the top plate 504 contacts the push rod 514, the inclined surface of the top plate 504 can squeeze the push rod 514, causing it to move upward and squeeze the carrier plate 508. 8. The carrier plate 508 will deform, and the side plate 509 can rotate. The sliding plate 510 will slide towards the center on the sliding rod 511, so that the carrier plate 508 has a certain deformation space. Therefore, the bending deformation of the carrier plate 508 can reduce the bonding strength between the product and the carrier plate 508. When the top plate 504 moves back and forth, it can push multiple sets of top rods 514 in sequence, thereby changing the position of the protrusion of the carrier plate 508 and further improving the separation effect between the carrier plate 508 and the product. Subsequent personnel only need to gently pull the product to remove it.

[0046] Then, when printing the next product, the above operation is repeated. At this time, when the turntable 4 rotates, the pulley seat 604 can move to the recess of the limit ring 603. The return spring 605 will push the pulley seat 604, so that the pin 606 automatically separates from the positioning hole 607, releasing the rotation restriction of the damping shaft 506. During this process, the turntable 4 will also drive the bevel gear 601 to mesh with the rack 602 through the damping shaft 506, thereby controlling the carrier plate 508 to flip halfway. The ring allows the carrier plate 508 to automatically flip over to the top of the cleaning component 7 after unloading. After flipping, the pulley seat 604 will push against the protrusion of the limit ring 603, which will automatically insert into the positioning hole 607 to lock the rotation angle of the damping shaft 506. Then, when unloading the previous product, the top plate 504 will drive the external tooth nut 704 to rotate through the first toothed plate 701, the double gear 702, and the second toothed plate 703. At this time, the base 1 will... The external toothed nut 704 is positioned to limit the rotation of the screw 705 via the smooth rod 707 and the movable seat 706. Therefore, when the external toothed nut 704 rotates, the screw 705 drives the movable seat 706 to move, which in turn drives the upper scraper seat 713 to scrape and clean the surface of the carrier plate 508. During the scraping process, the first spring 709, limited by the first sliding column 708, pushes the connecting plate 710, ensuring the scraper seat 713 adheres tightly to the surface of the carrier plate 508, thus improving cleaning efficiency. When encountering firmly adhered substances, the second spring 712 contracts under resistance, gradually increasing the thrust of the scraper seat 713. When the thrust exceeds the adhesion threshold, causing impurities to detach, the second spring 712 pushes the scraper seat 713 to quickly reset, using inertia to dislodge residual debris. This gives the scraper seat 713 a certain self-cleaning ability. Simultaneously, the waste bin 714 can be used to cover the outer side.

[0047] Finally, after cleaning, when the rotating platform 4 continues to rotate, the loading plate 508 can also be flipped and reset under the action of the bevel gear 601 and the rack 602.

[0048] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A replaceable product 3D printing platform, characterized in that, The device includes a base and a stripping assembly. A dual-axis motor is housed inside the lower end of the base, and one end of the motor is connected to a worm gear reducer via a one-way coupling. The output shaft of the worm gear reducer is connected to a rotating table. The stripping assembly is located at the other end of the dual-axis motor and includes a bevel gear set. The other end of the dual-axis motor is connected to the bevel gear set via a one-way coupling, and the top of the bevel gear set is connected to a rotating disk via a rotating shaft. A protruding post is fixed to one end of the top of the rotating disk, and a sliding connection is made to the outer side of the protruding post. The top plate has a guide frame slidably connected inside. The outer end of the rotating platform is rotatably connected to a damping shaft, and a heating seat is fixed at one end of the damping shaft. A carrying plate is provided on one side of the heating seat, and side plates are arranged on both sides of the carrying plate. A sliding plate is rotatably connected to one end of the side plate, and sliding rods are slidably connected to both ends of the sliding plate. A compression spring is sleeved on the outer side of the sliding rod, and the compression spring is in contact with the heating seat. A support frame is provided at the bottom of the heating seat, and a top rod is slidably connected inside the support frame.

2. The replaceable product 3D printing platform according to claim 1, characterized in that, The slide rod is fixedly connected to the heating base, and the top rod is slidably connected to the heating base, with a radial flange in the middle of the top rod.

3. The replaceable product 3D printing platform according to claim 2, characterized in that, The other end of the damping shaft is connected to a flipping assembly, which includes a bevel gear. The other end of the damping shaft is equipped with a bevel gear. A rack is installed on the upper part of the base, and a limit ring is fixed to the upper outer end of the base.

4. The replaceable product 3D printing platform according to claim 3, characterized in that, The top of the limiting ring is provided with a pulley seat, and the top of the pulley seat is connected with a return spring. The return spring is provided with a pin inside, and the pin is fixedly connected to the pulley seat. The damping shaft has a positioning hole in the middle, and the end of the positioning hole is tapered.

5. A replaceable product 3D printing platform according to claim 4, characterized in that, The pin is slidably connected to the rotating platform, and the bottom of the rotating platform abuts against the top of the return spring.

6. The replaceable product 3D printing platform according to claim 5, characterized in that, One end of the top plate is connected to a cleaning component, and the cleaning component includes a first toothed plate. The first toothed plate is installed at one end of the top plate, and a double gear meshes on one side of the first toothed plate. A second toothed plate meshes on the upper side of the double gear, and an external toothed nut meshes on the top of the second toothed plate. A screw is connected to the internal thread of the external toothed nut, and a movable seat is installed at one end of the screw. A smooth rod is installed on one side of the movable seat.

7. A replaceable product 3D printing platform according to claim 6, characterized in that, The double gear is rotatably connected to the base, and the guide frame is fixedly connected to the base.

8. A replaceable product 3D printing platform according to claim 7, characterized in that, The bottom protrusion of the second toothed plate is an isosceles trapezoid, and the second toothed plate is slidably connected to the base.

9. A replaceable product 3D printing platform according to claim 8, characterized in that, The external toothed nut is rotatably connected to the base, and the smooth rod is slidably connected to the base.

10. A replaceable product 3D printing platform according to claim 9, characterized in that, The top of the movable base is slidably connected to a first sliding column, a first spring is sleeved on the outside of the first sliding column, and a connecting plate is connected to the top of the first spring. The connecting plate is fixedly connected to the first sliding column. The connecting plate has an L-shaped cross section, and a second sliding column is slidably connected inside the connecting plate. A second spring is sleeved on the outside of the second sliding column, and a scraper seat is connected to one end of the second spring. The scraper seat is fixedly connected to the second sliding column. A waste bin is installed on one side of the base.

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