A 3D printed mold quick change mechanism

Abstract

The utility model discloses a kind of mould quick replacement mechanism of 3D printing, including barrel, fixed disc and feed pipe, the bottom outer wall of barrel is fixedly connected with guide pipe, the one end of guide pipe away from barrel is provided with guide disc, the one side of guide disc is provided with extrusion die head, the feed pipe is communicated with the barrel, the one side of barrel is provided with the power component for replacing extrusion die head, the inside of guide pipe is provided with anti-blocking component. The mould quick replacement mechanism of 3D printing, when needing to extrude different specifications wire material, start motor can drive first helical gear to rotate, and then drive second helical gear and guide disc to rotate, realize the automatic switching of different specifications extrusion die head, meet the use demand of different specifications extrusion die head under different production conditions, improve the replacement efficiency, avoid the problem of low manual replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically a quick mold changing mechanism for 3D printing. Background Technology

[0002] 3D printing is an advanced technology for manufacturing three-dimensional objects. Compared to traditional industrial manufacturing, it does not require molds or large production lines. Simply put, 3D printing involves building an object by stacking materials layer by layer based on a computer-generated three-dimensional model on a single machine.

[0003] Currently, when 3D printers need to print complex product molds, the varying sizes of different parts of the same product make it difficult to balance efficiency and quality when using the same size print head. Generally, for molds with larger contours, using a small extrusion die head is too inefficient, requiring a larger diameter die head for faster printing. Conversely, for delicate parts or smaller contours, using a large extrusion die head cannot guarantee product quality, necessitating the use of a smaller diameter die head to ensure print quality across all parts. Therefore, different contours require different diameter extrusion die heads for printing. This necessitates frequent print head changes based on the size of the parts to be printed, while maintaining print quality and improving efficiency.

[0004] In practice, manually changing the printhead is inefficient, indirectly affecting the printing efficiency of the equipment. Furthermore, due to repetitive positioning issues, it can easily cause print quality problems. Additionally, the high temperature of the printhead makes manual replacement difficult. Therefore, there is an urgent need to design a quick-change mechanism for 3D printing molds to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a quick mold change mechanism for 3D printing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick-change mechanism for 3D printed molds, comprising a material cylinder, a fixed plate, and a feed pipe. A guide pipe is fixedly connected to the bottom outer wall of the material cylinder. A guide plate is provided at one end of the guide pipe away from the material cylinder. An extrusion die is provided on one side of the guide plate. The feed pipe is connected to the material cylinder. A power assembly for replacing the extrusion die is provided on one side of the material cylinder.

[0007] The feed tube is equipped with an anti-clogging component.

[0008] By adopting the above technical solution, the efficiency and quality problems caused by the frequent replacement of mold head specifications in 3D printing are effectively solved.

[0009] The present invention is further configured such that the curvature of the guide tube is 135°, the guide plate is arranged perpendicularly to the guide tube, and the vertical angle between an extrusion die head and the guide plate is 135°.

[0010] By adopting the above technical solution, it is ensured that when the power component drives the guide plate to rotate and switch the extrusion die, the newly switched extrusion die can accurately return to the initial printing position without the need for repositioning and adjustment, thus ensuring the continuity of the 3D printer's operation and the stability of the printing quality.

[0011] The present invention is further configured such that the power assembly includes a motor disposed on one side of the material cylinder, the output end of the motor is fixedly connected to a first helical gear, the first helical gear meshes with a second helical gear, one end of the guide plate is fixedly connected to a rotating seat, the rotating seat is provided with a bearing seat inside, and the bearing seat is fixedly connected to the guide tube.

[0012] By adopting the above technical solution, automatic switching of extrusion die heads was achieved, greatly improving the replacement efficiency.

[0013] The present invention is further configured such that a distribution hopper is provided on one side of the guide plate in a circular arrangement at equal intervals, the distribution hopper is connected to the guide plate, the extrusion die is connected to the guide plate through the distribution hopper, and a solenoid valve is provided on one side of the extrusion die.

[0014] By adopting the above technical solution, precise control of material output from extrusion dies of different specifications has been achieved.

[0015] The present invention is further configured such that a ring plate is fixedly connected to the outer circumference of the material cylinder, a fixing frame is fixedly connected to the outer circumference of the ring plate, a mounting base is fixedly connected to one side of the outer wall of the fixing frame, and the mounting base is fixedly connected to the motor.

[0016] By adopting the above technical solutions, we can ensure the motor is securely installed, guarantee the stability of the power components during operation, and thus ensure the stable operation of the extrusion die switching process.

[0017] The present invention is further configured such that a vertical plate is fixedly connected to the bottom outer wall of the fixing frame, the ring plate is fixedly connected to the vertical plate, and the output end of the motor is rotatably connected to the vertical plate.

[0018] By adopting the above technical solution, the motor can drive the first helical gear to rotate more smoothly, reducing shaking and improving power transmission efficiency.

[0019] The present invention is further configured such that a rotating tube is fixedly connected to the top of the guide plate, and the outer circumferential wall of the rotating tube is rotatably connected to the inner circumferential wall of the guide tube.

[0020] By adopting the above technical solution: when the guide plate rotates, the rotating tube rotates inside the guide tube, which plays an auxiliary supporting role in the rotation of the guide plate, and at the same time ensures the stability of the material transmission channel between the guide tube and the guide plate.

[0021] The present invention is further configured such that the anti-clogging component includes a reinforcing column fixedly connected to the inner circumference of the rotating tube, a fixing column fixedly connected to one end of the reinforcing column away from the guide tube, and a spiral blade fixedly connected to the outer circumference of the fixing column.

[0022] By adopting the above technical solutions, it is possible to effectively prevent materials from accumulating and clogging in the feed tube, ensure the smooth flow of materials, and ensure the continuous and stable operation of 3D printing.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] This 3D printed mold quick-change mechanism, through a power component consisting of a motor, a first helical gear, a second helical gear, and a guide plate, automatically switches between different specifications of extrusion dies when different specifications of molten wire need to be extruded. This allows the motor to rotate the first helical gear, which in turn rotates the second helical gear and the guide plate, thus meeting the needs of different specifications of extrusion dies under different production conditions. This improves the efficiency of die changes and avoids the problem of low efficiency in manual changes.

[0025] The quick mold changing mechanism for this 3D printer features a 135° bend in the feed tube and a 135° vertical angle between the extrusion die and the feed plate. This design ensures that the extrusion die remains in its initial state after each change, preventing displacement and ensuring the continuity of the 3D printer's operation. It eliminates the need to adjust the position of the extrusion die and avoids printing quality issues caused by repositioning.

[0026] This 3D printed mold quick-change mechanism has an anti-clogging component inside the feed tube, consisting of reinforcing columns, fixed columns, and spiral blades. During the switching of extrusion dies, the rotation of the feed plate can drive the rotating tube to rotate together, which in turn drives the anti-clogging component to rotate, conveying the material in the feed tube to the feed plate, thus avoiding blockage during the switching of extrusion dies and ensuring smooth material conveying. Attached Figure Description

[0027] Figure 1 This is a front structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the overall half-sectional structure of this utility model;

[0030] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0031] In the diagram: 1. Material cylinder; 2. Feed pipe; 3. Fixed plate; 4. Ring plate; 5. Fixed frame; 6. Mounting base; 7. Vertical plate; 8. First helical gear; 9. Guide pipe; 10. Second helical gear; 11. Distribution hopper; 12. Extrusion die head; 13. Guide plate; 14. Motor; 15. Fixed column; 16. Spiral blade; 17. Reinforcing column; 18. Bearing seat; 19. Solenoid valve; 20. Rotating pipe; 21. Rotating base. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-4 This utility model provides a technical solution: a quick change mechanism for 3D printed molds, including a material cylinder 1, a fixed plate 3 and a feed pipe 2. A guide pipe 9 is fixedly connected to the bottom outer wall of the material cylinder 1. A guide plate 13 is provided at the end of the guide pipe 9 away from the material cylinder 1. An extrusion die head 12 is provided on one side of the guide plate 13. The feed pipe 2 is connected to the material cylinder 1. A power component for replacing the extrusion die head 12 is provided on one side of the material cylinder 1.

[0034] The feed tube 9 is equipped with an anti-clogging component. The material in the barrel 1 enters through the feed pipe 2, is transferred to the feed tray 13 through the feed tube 9, and is then extruded by the extrusion die 12 for 3D printing. At the same time, the power component is installed on one side of the barrel 1 to provide power for the replacement of the extrusion die 12. The anti-clogging component is set inside the feed tube 9 to prevent material blockage. This overall structural design effectively solves the efficiency and quality problems caused by the frequent replacement of die head specifications in 3D printing.

[0035] To ensure the continuity of 3D printer operation and the stability of print quality, refer to Figure 1The guide tube 9 has a curvature of 135°, and the guide plate 13 is set perpendicular to the guide tube 9. The vertical angle between the extrusion die 12 and the guide plate 13 is 135°, which ensures that when the power unit drives the guide plate 13 to rotate and switch the extrusion die 12, the newly switched extrusion die 12 can accurately return to the initial printing position without the need for repositioning and adjustment, thus ensuring the continuity of the 3D printer's operation and the stability of the printing quality.

[0036] To address the inefficiency of manual replacement, refer to Figures 2-3 The power assembly includes a motor 14 located on one side of the material cylinder 1. The output end of the motor 14 is fixedly connected to a first helical gear 8, which meshes with a second helical gear 10. One end of the guide plate 13 is fixedly connected to a rotating seat 21, and a bearing seat 18 is provided inside the rotating seat 21. The bearing seat 18 is fixedly connected to the guide tube 9. After the motor 14 is started, the output end drives the first helical gear 8 to rotate. The first helical gear 8 meshes with the second helical gear 10, transmitting power to the second helical gear 10. The second helical gear 10 drives the guide plate 13 to rotate around the bearing seat 18, realizing the automatic switching of the extrusion die head 12 and greatly improving the replacement efficiency.

[0037] To facilitate material discharge control for extrusion dies 12 of different specifications, refer to Figures 2-3 A circular distribution hopper 11 is provided on one side of the guide plate 13. The distribution hopper 11 is connected to the guide plate 13. The extrusion die 12 is connected to the guide plate 13 through the distribution hopper 11. A solenoid valve 19 is provided on one side of the extrusion die 12. The material in the guide plate 13 is distributed to each extrusion die 12 through the distribution hopper 11. When a certain specification of extrusion die 12 needs to work, the solenoid valve 19 on the corresponding side of the extrusion die 12 is opened, and the material is extruded through this extrusion die 12, realizing precise control of the material output of extrusion dies 12 of different specifications.

[0038] To ensure the stability of the power components during operation, refer to Figures 2-3 A ring plate 4 is fixedly connected to the outer circumference of the barrel 1. A fixing frame 5 is fixedly connected to the outer circumference of the ring plate 4. A mounting seat 6 is fixedly connected to one side of the outer wall of the fixing frame 5. The mounting seat 6 is fixedly connected to the motor 14. The ring plate 4, the fixing frame 5 and the mounting seat 6 together constitute the mounting support structure of the motor 14, ensuring that the motor 14 is stably installed, ensuring the stability of the power component when it is working, and thus ensuring the stable operation of the extrusion die head 12 switching process.

[0039] To ensure the stability of motor 14 during operation, refer to Figures 2-3A vertical plate 7 is fixedly connected to the bottom outer wall of the fixed frame 5. The ring plate 4 is fixedly connected to the vertical plate 7. The output end of the motor 14 is rotatably connected to the vertical plate 7. The vertical plate 7 strengthens the connection stability between the fixed frame 5 and the ring plate 4 on the one hand, and provides rotation support for the output end of the motor 14 on the other hand, so that the motor 14 drives the first helical gear 8 to rotate more smoothly, reduces shaking, and improves power transmission efficiency.

[0040] To avoid affecting material conveying due to offset caused by rotation, refer to... Figures 2-4 A rotating tube 20 is fixedly connected to the top of the guide plate 13. The outer circumference of the rotating tube 20 is rotatably connected to the inner circumference of the guide tube 9. When the guide plate 13 rotates, the rotating tube 20 rotates in the guide tube 9, which plays a role in assisting the rotation of the guide plate 13 and ensuring the stability of the material transmission channel between the guide tube 9 and the guide plate 13.

[0041] To prevent material from accumulating and clogging inside the feed pipe 9, refer to... Figures 2-4 The anti-clogging component includes a reinforcing column 17 fixedly connected to the inner circumference of the rotating tube 20. A fixing column 15 is fixedly connected to the end of the reinforcing column 17 away from the guide tube 9. A spiral blade 16 is fixedly connected to the outer circumference of the fixing column 15. During the process of rotating the guide plate 13 to switch the extrusion die 12, the rotating tube 20 drives the anti-clogging component to rotate, and the spiral blade 16 rotates to push the material in the guide tube 9 to the guide plate 13, effectively preventing the material from accumulating and clogging in the guide tube 9, ensuring the smoothness of material conveying, and ensuring the continuous and stable operation of 3D printing.

[0042] In summary, the working principle of this utility model is as follows: When different specifications of wire melt need to be extruded, the motor 14 can be started. The motor 14 drives the first helical gear 8 to rotate. When the first helical gear 8 rotates, it drives the second helical gear 10, which meshes with it, to rotate as well. When the second helical gear 10 rotates, it drives the guide plate 13, which is fixedly connected to it, to rotate as well. The rotation of the guide plate 13 drives the extrusion die 12 on one side of it to rotate as well, thus achieving automatic switching between extrusion dies 12 of different specifications. This facilitates the use of different specifications of extrusion dies 12 under different production conditions. Simultaneously, because the guide tube 9 has a curvature of 13°... The vertical angle between the extrusion die 12 and the guide plate 13 is 135°, ensuring that the extrusion die 12 can maintain its initial state without displacement after each switch, thus ensuring the continuity of the 3D printer's operation. There is no need to adjust the position of the extrusion die 12. During the switching of the extrusion die 12, the rotation of the guide plate 13 can drive the rotating tube 20 to rotate as well. The rotation of the rotating tube 20 can drive the reinforcing column 17, the fixed column 15 and the spiral blade 16 to rotate together, thereby conveying the material in the guide tube 9 into the guide plate 13, avoiding blockage during the switching of the extrusion die 12.

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

Claims

1. A quick-change mechanism for 3D printed molds, comprising a material cylinder (1), a fixed platen (3), and a feed tube (2), characterized in that, A guide pipe (9) is fixedly connected to the bottom outer wall of the material cylinder (1). A guide plate (13) is provided at one end of the guide pipe (9) away from the material cylinder (1). An extrusion die (12) is provided on one side of the guide plate (13). The feed pipe (2) is connected to the material cylinder (1). A power assembly for replacing the extrusion die (12) is provided on one side of the material cylinder (1). The feed tube (9) is equipped with an anti-clogging component.

2. The quick-change mechanism for 3D printed molds according to claim 1, characterized in that, The guide tube (9) has a curvature of 135°, the guide plate (13) is set perpendicular to the guide tube (9), and the vertical angle between an extrusion die (12) and the guide plate (13) is 135°.

3. The quick-change mechanism for 3D printed molds according to claim 2, characterized in that, The power assembly includes a motor (14) disposed on one side of the material cylinder (1), the output end of the motor (14) is fixedly connected to a first helical gear (8), the first helical gear (8) meshes with a second helical gear (10), one end of the guide plate (13) is fixedly connected to a rotating seat (21), the rotating seat (21) is provided with a bearing seat (18) inside, and the bearing seat (18) is fixedly connected to the guide tube (9).

4. The quick-change mechanism for 3D printed molds according to claim 3, characterized in that, The guide plate (13) has a circularly distributed hopper (11) at equal intervals on one side. The hopper (11) is connected to the guide plate (13). The extrusion die (12) is connected to the guide plate (13) through the hopper (11). A solenoid valve (19) is provided on one side of the extrusion die (12).

5. The quick-change mechanism for 3D printed molds according to claim 4, characterized in that, A ring plate (4) is fixedly connected to the outer circumference of the material cylinder (1), a fixing frame (5) is fixedly connected to the outer circumference of the ring plate (4), and a mounting seat (6) is fixedly connected to one side of the outer wall of the fixing frame (5). The mounting seat (6) is fixedly connected to the motor (14).

6. The quick-change mechanism for 3D printed molds according to claim 5, characterized in that, The bottom outer wall of the fixed frame (5) is fixedly connected to a vertical plate (7), the ring plate (4) is fixedly connected to the vertical plate (7), and the output end of the motor (14) is rotatably connected to the vertical plate (7).

7. The quick-change mechanism for 3D printed molds according to claim 6, characterized in that, The top of the guide plate (13) is fixedly connected to a rotating tube (20), and the outer circumferential wall of the rotating tube (20) is rotatably connected to the inner circumferential wall of the guide tube (9).

8. The quick-change mechanism for 3D printed molds according to claim 7, characterized in that, The anti-clogging component includes a reinforcing column (17) fixedly connected to the inner circumference of the rotating tube (20), and a fixing column (15) fixedly connected to one end of the reinforcing column (17) away from the guide tube (9), and a spiral blade (16) fixedly connected to the outer circumference of the fixing column (15).

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