A 3D printing device for model making

Abstract

This utility model relates to a 3D printing device for model making, belonging to the field of 3D printing technology. The device includes a base, a mounting base, a gantry frame, a lifting base, and a printing nozzle. A base plate platform is provided on the top of the mounting base. A side seat is provided on each side of the base plate platform, with L-shaped sliding holes. Two L-shaped slides, a first L-shaped slide and a second L-shaped slide, are slidably disposed in the two L-shaped sliding holes, with a scraper fixedly connected between them and positioned above the base plate platform. The second L-shaped slide contains a cylinder and a sliding rod, which moves up and down through a spiral guide groove, engaging or disengaging with a bottom slot, thereby enabling the movement and locking of the scraper. This structure allows the model to be scraped off the platform after printing, reducing model damage and facilitating the disassembly and maintenance of the base plate platform.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a 3D printing device for model making. Background Technology

[0002] 3D printing technology is widely used in fields such as model making. With existing equipment, after printing, the finished product usually needs to be manually removed from the printing platform. For some thinner models, this process may damage the model. Furthermore, the bottom of the printing platform typically requires adhesive to prevent printing failures and regular maintenance. However, existing substrates are often fixed in place, making disassembly and cleaning difficult, increasing operational complexity and maintenance costs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of removing the printed model and the difficulty of disassembling the substrate, and to propose a 3D printing device for model making.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A 3D printing device for model making includes a base, a mounting seat that is slidably disposed on the top of the base, a gantry frame that is fixedly disposed on the top of the base, a lifting seat that is slidably disposed on the side wall of the gantry frame, and a printing nozzle that is slidably disposed on the side wall of the lifting seat.

[0006] The substrate platform is mounted on top of the mounting base;

[0007] Two side seats are fixedly installed on opposite sides of the mounting base. The top of the side seats and the side wall near the mounting base are provided with the same L-shaped sliding hole along the length of the side seats.

[0008] L-shaped slide block No. 1 and L-shaped slide block No. 2 are respectively slidably installed inside the two L-shaped sliding holes;

[0009] The spade is fixed at both ends to the ends of the transverse sections of the first L-shaped slide and the second L-shaped slide, and is located at the top of the substrate platform.

[0010] In one possible design, the mounting base, lifting base, and printhead are all driven by a screw drive mechanism.

[0011] In one possible design, the shovel blade is set as an inclined surface, and positioning rods are fixedly installed at the four corners of the top of the mounting base. Positioning holes are opened at the four corners of the surface of the base plate platform, and the positioning holes cooperate with the corresponding positioning rods.

[0012] In one possible design, the vertical section of the second L-shaped slide block has a circular hole, inside which a rotating cylinder and a slide rod that slides up and down along the axial direction are respectively arranged, and one end of the slide rod extends into the inside of the cylinder. The outer wall of the slide rod has a spiral guide groove, and a guide block is fixedly arranged on the inner wall of the cylinder, and the guide block is located inside the guide groove. The bottom inner wall of the L-shaped sliding hole on the same side as the second L-shaped slide block has a slot, and the bottom end of the slide rod cooperates with the slot.

[0013] In one possible design, an annular groove is provided at the top of the outer wall of the cylinder, and a torsion spring is fitted on the outer wall of the annular groove. The two ends of the torsion spring are respectively connected to the inner wall of the circular hole of the second L-shaped slide and the outer wall of the annular groove.

[0014] In one possible design, a limiting seat is fixedly installed on the top of the side seat on the same side as the second L-shaped slide. One end of the limiting seat is set as an arc groove. The outer wall of the arc groove is slidably fitted with the second screw handle along the axial direction. The second screw handle is located outside the side seat and cooperates with the arc groove.

[0015] In one possible design, a handle is fixedly installed at the top of the vertical section of the L-shaped slide, and the handle is located outside the side seat.

[0016] In this application, during actual use, the initial position of the No. 2 handle is attached to the inner wall of the arc groove, while the scraper is located at the top outside the working area of ​​the substrate platform. After the model is printed, the operator can manually turn the No. 2 handle to make it rotate the cylinder. The cylinder moves along the spiral guide groove through the guide block on the inner wall, thereby driving the slide rod to move upward and thus disengage from the inside of the slot. At this time, the operator can hold the No. 1 handle and the No. 2 handle with both hands respectively, thereby driving the scraper to move inward through the L-shaped seat, thereby scraping the model off and separating it from the substrate platform. After the process is completed, the model can be reset.

[0017] When it is necessary to remove the substrate platform, the No. 2 handle can be moved upwards, causing it to disengage from the arc groove and move above the limiting seat. Then, the No. 2 handle can be moved outwards, and the lower cylinder and the No. 2 L-shaped slide will move synchronously, thereby causing the shovel to disengage from the top of the substrate platform and release its fixed state. The slide rod will then move from one end of the slot to the other end. After that, the substrate platform can be removed for maintenance.

[0018] In this utility model, the 3D printing equipment for model making can separate the printed model from the substrate by means of a shovel, avoiding the need to manually pry the model in the traditional method and reducing the risk of model damage.

[0019] In this utility model, the 3D printing equipment for model making can achieve both model separation and fixed positioning of the substrate platform through an adjustable shovel, thereby ensuring stability.

[0020] In this invention, the printed model can be separated from the substrate during use, thereby reducing the risk of model damage and making it easy to remove the substrate without additional tools, thus facilitating maintenance work in later use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of a 3D printing device for model making proposed in this utility model;

[0022] Figure 2 This is an exploded view of the substrate platform of a 3D printing device for model making proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the exploded structure of the slide of a 3D printing device for model making proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the exploded side seat structure of a 3D printing device for model making proposed in this utility model.

[0025] In the diagram: 1. Base; 2. Mounting seat; 3. Lifting seat; 4. Gantry frame; 5. Printer nozzle; 6. Base plate platform; 7. Positioning rod; 8. Side seat; 9. L-shaped sliding hole; 10. Positioning hole; 11. No. 1 L-shaped slide; 12. No. 1 handle; 13. Shovel; 14. No. 2 handle; 15. No. 2 L-shaped slide; 16. Circular groove; 17. Cylinder; 18. Slide rod; 19. Guide groove; 20. Torsion spring; 21. Limiting seat; 22. Arc groove; 23. Slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In one embodiment: Reference Figure 1A 3D printing device includes: a base 1, a mounting base 2, a gantry 4, a lifting platform 3, and a printing nozzle 5. The mounting base 2 is longitudinally slidable on top of the base 1 via a guide rail slider mechanism. Power is provided by a lead screw transmission mechanism driven by a servo motor. When the lead screw rotates while the nut cannot rotate, the lead screw is driven, and the nut and load slider are connected to a guide component to achieve linear motion. The gantry 4 is fixedly installed at the rear top of the base 1 as a support structure.

[0028] The lifting seat 3 is vertically slidably mounted on the side wall of the gantry 4 via another set of guide rail slider mechanisms, and its up and down movement is also controlled by a lead screw transmission mechanism driven by a servo motor. The printing nozzle 5 is laterally slidably mounted on the side wall of the lifting seat 3 to complete the material extrusion and printing operations. The printing nozzle 5 is an existing single-nozzle structure. A stepper motor pushes solid filaments into a high-temperature heating block. The filaments are heated and melted in the heating block, becoming a viscous flow state. Under the continuous pressure generated by the extrusion motor, the molten material is extruded through a nozzle with a tiny orifice at the end, forming a fine filament of printing material.

[0029] refer to Figure 2 The base plate platform 6 is mounted on top of the mounting base 2 through the cooperation of the positioning rod 7 and the positioning hole 10 to ensure accurate positioning.

[0030] Two side seats 8 are fixedly installed on opposite sides of the mounting base 2, and each side seat 8 has an L-shaped sliding hole 9. The first L-shaped slide 11 and the second L-shaped slide 15 are slidably installed inside the two L-shaped sliding holes 9, and the two ends of the shovel 13 are fixedly connected to the ends of the transverse sections of the first L-shaped slide 11 and the second L-shaped slide 15, respectively. The shovel 13 is located on the top of the substrate platform 6.

[0031] refer to Figure 3-4 Inside the vertical section of the circular hole of the second L-shaped slide block 15, there is a rotatable cylinder 17 and a sliding rod 18 that can slide up and down. The spiral guide groove 19 on the outer wall of the sliding rod 18 cooperates with the guide block on the inner wall of the cylinder 17. When the cylinder 17 is driven to rotate, the internal guide block will move along the spiral guide groove 19, thereby driving the sliding rod 18 to move up and down. A torsion spring 20 is sleeved in the annular groove 16 on the outer wall of the cylinder 17, and its two ends are connected to the outer wall of the annular groove 16 and the inner wall of the circular hole, respectively, to help the cylinder 17 to return to its original position.

[0032] A slot 23 is provided on the inner wall of the bottom of the L-shaped sliding hole 9 on the same side as the second L-shaped slide block 15, and the bottom end of the slide rod 18 can be inserted into the slot to achieve fixation.

[0033] The initial position of the second handle 14 is against the inner wall of the arc groove 22, and the spade 13 is located at the top outside the working area of ​​the substrate platform 6, thereby fixing and limiting the substrate platform 6. After the model is printed, the operator manually turns the second handle 14 to make it rotate the cylinder 17. The cylinder 17 moves along the spiral guide groove 19 through the guide block on the inner wall, driving the slide rod 18 to move upward, thereby disengaging it from the interior of the slot 23.

[0034] At this point, the operator can hold handle 12 and knob 14 with both hands respectively, and use the L-shaped slide to move the spade 13 inward, scraping the model off the base plate platform 6 to separate the model from the platform. After the operation is completed, all components can be reset.

[0035] This application can be used in the field of 3D printing technology, or in other fields applicable to this application.

[0036] In another embodiment: Reference Figure 4 A 3D printing device for model making is used to limit the second handle 14 so that when scraping the model, the scraper 13 is limited to the area at the top of the substrate platform 6. It is applied to the field of 3D printing technology. The side seat 8 has a limit seat 21 fixed on the top, and the arc groove 22 on it is used to limit the position of the second handle 14.

[0037] When the substrate platform 6 needs to be removed for maintenance, the second handle 14 can be moved upwards to disengage it from the arc groove 22 and move it above the limiting seat 21. Then, the second handle 14 can be moved outwards, and the lower cylinder 17 and the second L-shaped slide block 15 will move synchronously, causing the shovel 13 to disengage from above the substrate platform 6, releasing its fixed state. The substrate platform 6 can then be removed for maintenance. At this time, the slide bar 18 will move from one end to the other inside the slot 23.

[0038] However, as is well known to those skilled in the art, the working principle and wiring method of the print head 5 and the lead screw drive mechanism are conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0039] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A 3D printing device for model making, characterized in that, include: The base (1), the mounting seat (2) which is longitudinally slidably disposed on the top of the base (1), the gantry (4) which is fixedly disposed on the top of the base (1), the lifting seat (3) which is vertically slidably disposed on the side wall of the gantry (4), and the printing nozzle (5) which is horizontally slidably disposed on the side wall of the lifting seat (3); The substrate platform (6) is mounted on top of the mounting base (2); Two side seats (8) are fixedly installed on opposite sides of the mounting base (2). The top of the side seat (8) and the side wall near the mounting base (2) are provided with the same L-shaped sliding hole (9) along the length of the side seat (8). L-shaped slide block 1 (11) and L-shaped slide block 2 (15) are respectively slidably disposed inside the two L-shaped sliding holes (9); The spade (13) is fixed at both ends of the transverse section of the first L-shaped slide (11) and the second L-shaped slide (15), and the spade (13) is located at the top of the substrate platform (6).

2. The 3D printing equipment for model making according to claim 1, characterized in that, The mounting base (2), lifting base (3), and printing nozzle (5) are all driven by a screw drive mechanism.

3. The 3D printing equipment for model making according to claim 2, characterized in that, The spade (13) is set as an inclined surface, and the four corners of the top of the mounting base (2) are fixedly provided with positioning rods (7). The four corners of the surface of the base plate platform (6) are provided with positioning holes (10), and the positioning holes (10) are matched with the corresponding positioning rods (7).

4. A 3D printing device for model making according to claim 3, characterized in that, The vertical section of the second L-shaped slide block (15) has a circular hole. Inside the circular hole, there is a rotating cylinder (17) and a slide rod (18) that slides up and down along the axial direction. One end of the slide rod (18) extends into the inside of the cylinder (17). The outer wall of the slide rod (18) has a spiral guide groove (19). The inner wall of the cylinder (17) is fixedly provided with a guide block, which is located inside the guide groove (19). The bottom inner wall of the L-shaped sliding hole (9) on the same side as the second L-shaped slide block (15) has a slot (23), and the bottom end of the slide rod (18) is engaged with the slot (23).

5. A 3D printing device for model making according to claim 4, characterized in that, A circular groove (16) is provided at the top of the outer wall of the cylinder (17). A torsion spring (20) is fitted on the outer wall of the circular groove (16), and the two ends of the torsion spring (20) are respectively connected to the inner wall of the circular hole of the second L-shaped slide (15) and the outer wall of the circular groove (16).

6. A 3D printing device for model making according to claim 4, characterized in that, A limiting seat (21) is fixedly installed on the top of the side seat (8) which is on the same side as the second L-shaped slide (15). One end of the limiting seat (21) is set as an arc groove (22). The outer wall of the annular groove (16) is slidably fitted with a second screw handle (14) along the axial direction. The second screw handle (14) is located outside the side seat (8) and the second screw handle (14) cooperates with the arc groove (22).

7. A 3D printing device for model making according to claim 6, characterized in that, A handle (12) is fixedly installed at the top of the vertical section of the first L-shaped slide (11), and the first handle (12) is located outside the side seat (8).

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