Three-color 3D printer

Abstract

The utility model relates to a three-color 3D printer which comprises a machine frame and a transmission part installed on the machine frame, a printing part is installed on the transmission part, a printing assembly comprises a printing seat and a connecting seat vertically installed on the printing seat in a sliding mode, and three feeding assemblies and a nozzle assembly are installed on the connecting seat. The nozzle assembly is located under the feeding assembly. The nozzle assembly comprises a heat dissipation plate fixedly installed on the connecting base and a nozzle base, the nozzle base is located under the heat dissipation plate, connectors with the same number as the feeding assemblies are installed at the top of the heat dissipation plate, a heater is installed in the nozzle base, a nozzle is fixedly installed in the heater, and a connecting pipe is connected between the heat dissipation plate and the nozzle. A channel used for penetrating through the connector and the connecting pipe is formed in the heat dissipation plate, the three feeding assemblies are arranged on the connecting base and used for printing the advertisement character shell, and the advertisement character panel and the advertisement character shell can be subjected to color-separated multi-color printing.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and more particularly to a three-color 3D printer. Background Technology

[0002] 3D printing is a rapid prototyping technology that uses digital files as a basis and powder or curable materials to manufacture products by printing layer by layer. In stark contrast to the subtractive manufacturing technology used in traditional manufacturing, 3D printing is an additive manufacturing technology that forms the final product by stacking layers of materials.

[0003] Currently, the main filaments used in 3D printers include ABS, PLA, and PC. These filaments are usually sold in rolls, each roll containing a single color. If multi-color 3D models need to be printed, the most common method is to change the filament to the corresponding color. This process is not only very complex but also involves printer adjustments. While some dual-color or multi-color 3D printers that don't require nozzle switching are available, these printers become even more complex when printing single colors. Using a control system to manage each individual filament further complicates the system, significantly increasing manufacturing costs. Alternatively, unused single-color filaments may need to be manually removed and re-inserted when needed, which is time-consuming, labor-intensive, and greatly impacts printer efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a three-color 3D printer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a three-color 3D printer, including a frame and a transmission component mounted on the frame. A printing component is mounted on the transmission component. The printing component includes a print base and a connecting base that is vertically slidably mounted on the print base. Three feeding components and one nozzle assembly are mounted on the connecting base. The nozzle assembly is located directly below the feeding components. The nozzle assembly includes a heat sink plate and a nozzle holder that are fixedly mounted on the connecting base. The nozzle holder is located directly below the heat sink plate. The top of the heat sink plate has the same number of connectors as the feeding components. A heater is installed inside the nozzle holder. A nozzle is fixedly installed inside the heater. A connecting pipe connects the heat sink plate and the nozzle. A channel for passing through the connectors and the connecting pipe is provided inside the heat sink plate.

[0006] Compared with existing technologies, by setting three feeding components on the connector, red, yellow and blue materials can be fed separately through the three feeding components during use, while controlling the amount of different colors. Then, by mixing and heating in the connecting tube, printing of any color can be obtained; it can be used for printing advertising letter shells, and advertising letter panels and advertising letter shells can be printed in multiple colors.

[0007] The technical solution of this utility model includes two guide beams mounted in parallel on the frame, a crossbeam slidably mounted on the two guide beams, a drive component for driving the crossbeam to move on the guide beams at the ends of the guide beams, and a power component for driving the printing component to move on the crossbeams at the ends of the crossbeams.

[0008] The technical solution of this utility model includes a drive base and two support bases fixedly installed on the frame. The two support bases are respectively located at one end of two guide rail beams. A drive source is fixedly installed on the drive base. A drive shaft is provided directly below the drive source. The drive shaft is rotatably installed on the drive base. The two ends of the drive shaft are rotatably connected to the two support bases respectively.

[0009] The technical solution of this utility model includes a drive shaft with one drive wheel and two drive wheels. The drive wheel is fixedly installed in the middle of the drive shaft and located inside the drive seat. The two drive wheels are fixedly installed at both ends of the drive shaft and located inside the support seat. A drive wheel is fixedly installed on the output end of the drive source. The drive wheel is located directly above the transmission. The drive wheel and the drive wheel are connected by a drive synchronous belt.

[0010] In the technical solution of this utility model, auxiliary seats are respectively provided at the other ends of the two guide rail beams. A driven wheel is rotatably installed in each auxiliary seat. The driven wheel and the driving wheel are connected by a transmission synchronous belt. A sliding plate is fixedly installed on the transmission synchronous belt, and the sliding plate is located directly above the guide rail beam. The crossbeam is fixedly installed on the sliding plate.

[0011] In this utility model, guide wheels are provided on both sides of the sliding plate, guide columns adapted to the guide wheels are fixedly installed on both sides of the guide rail beam, connecting plates are fixedly installed at both ends of the sliding plate, connecting grooves are provided on the connecting plates, fixing plates are provided in the connecting grooves, and the fixing plates and connecting plates are connected by fasteners. The transmission synchronous belt is located in the connecting grooves and between the fixing plates and the connecting plates; the printing component is slidably installed on the crossbeam.

[0012] The technical solution of this utility model is as follows: a sliding guide rail is vertically installed on the print base, a connecting seat is fixedly installed on the sliding guide rail, a drive source is fixedly installed on the top of the print base, a lead screw is fixedly installed on the output end of the drive source, and a nut adapted to the lead screw is installed on the connecting seat.

[0013] The technical solution of this utility model includes a feeding assembly comprising a feeding seat fixedly installed on a connecting seat, a driving source fixedly installed on the feeding seat, a feeding shaft fixedly installed on the output end of the driving source, an auxiliary wheel provided on one side of the feeding shaft, and a passage for material to pass through between the auxiliary wheel and the feeding shaft, the passage penetrating the feeding seat vertically.

[0014] In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that the present invention can solve, other technical features contained in the technical solutions, and the advantages brought about by these technical features will be further described in detail with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0016] Figure 2 This is a three-dimensional assembly diagram of this utility model.

[0017] Figure 3 This is the utility model Figure 1 Enlarged view of point A.

[0018] Figure 4 This is a cross-sectional view of the nozzle assembly of this utility model.

[0019] Explanation of reference numerals: 01. Frame, 02. Guide rail beam, 03. Crossbeam, 04. Drive seat, 05. Support seat, 06. Drive source, 07. Drive shaft, 08. Drive wheel, 09. Drive wheel, 10. Drive wheel, 11. Auxiliary seat, 12. Driven wheel, 13. Sliding plate, 14. Guide wheel, 15. Guide column, 16. Connecting plate, 17. Fixing plate, 18. Printer seat, 19. Connecting seat, 20. Lead screw, 21. Connecting pipe, 22. Heat sink, 23. Nozzle seat, 24. Connector, 25. Heater, 26. Nozzle, 27. Feed seat, 28. Feed shaft, 29. Auxiliary wheel. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 As shown, the three-color 3D printer of this utility model includes a frame 01 and a transmission component mounted on the frame 01. The transmission component includes two guide beams 02 mounted parallel to each other on the frame 01, and a sliding crossbeam 03 mounted on the two guide beams 02. A drive assembly for driving the crossbeam 03 to move on the guide beams 02 is mounted on the ends of the guide beams 02.

[0022] Please see Figure 1-2 As shown, the drive assembly includes a drive base 04 fixedly mounted on the frame 01 and two support bases 05. The two support bases 05 are located at one end of two guide rail beams 02, respectively. A drive source 06 is fixedly mounted on the drive base 04. A drive shaft 07 is located directly below the drive source 06. The drive shaft 07 is rotatably mounted on the drive base 04 via bearings. Both ends of the drive shaft 07 are rotatably connected to the two support bases 05 via bearings. A drive wheel 08 and two drive wheels 09 are mounted on the drive shaft 07. The drive wheel 08 is fixedly mounted in the middle of the drive shaft 07, located inside the drive base 04. The two drive wheels 09 are fixedly mounted at both ends of the drive shaft 07, located inside the support bases 05. A drive wheel 10 is fixedly mounted on the output end of the drive source 06, located directly above the drive. The drive wheel 10 and the drive wheel 08 are connected by a drive synchronous belt. Auxiliary seats 11 are respectively provided at the other ends of the two guide beams 02. A driven wheel 12 is rotatably installed in each auxiliary seat 11. The driven wheel 12 and the driving wheel 09 are connected by a transmission synchronous belt. A sliding plate 13 is fixedly installed on the transmission synchronous belt, and the sliding plate 13 is located directly above the guide beam 02. The aforementioned crossbeam 03 is fixedly installed on the sliding plate 13. When the drive source 06 is working, it drives the drive shaft to rotate through the drive synchronous belt. The rotation of the drive shaft drives the movement of the transmission synchronous belt, and the sliding assembly moves on the guide beam 02 under the action of the transmission synchronous belt. This drives the crossbeam 03 to move.

[0023] Guide wheels 14 are provided on both sides of the sliding plate 13. Guide posts 15 adapted to the guide wheels 14 are fixedly installed on both sides of the guide rail beam 02. Connecting plates 16 are fixedly installed at both ends of the sliding plate 13. Connecting grooves are provided on the connecting plates 16, and fixing plates 17 are provided in the connecting grooves. The fixing plates 17 and connecting plates 16 are connected by fasteners. The aforementioned transmission timing belt is located in the connecting grooves and between the fixing plates 17 and connecting plates 16. The transmission timing belt is fixed between the fixing plates 17 and connecting plates 16 by rotating the fasteners.

[0024] A printing component is slidably mounted on the crossbeam 03, and a power component is provided at the end of the crossbeam 03 to drive the printing component to move on the crossbeam 03. The power component has the same structure as the aforementioned drive component.

[0025] Please see Figure 3-4 As shown, the printing assembly includes a print base 18 fixedly mounted on a power unit. A sliding guide rail is vertically mounted on the print base 18, and a connecting seat 19 is fixedly mounted on the sliding guide rail. A drive source 06 is fixedly mounted on the top of the print base 18, and a lead screw 20 is fixedly mounted on the output end of the drive source 06. A nut adapted to the lead screw 20 is mounted on the connecting seat 19. When the drive source 06 mounted on the print base 18 is working, it drives the connecting seat 19 to move in the vertical direction of the print base 18 through the cooperation of the lead screw 20 and the nut.

[0026] Three feeding assemblies and one nozzle assembly are mounted on the connecting base 19, with the nozzle assembly located directly below the feeding assemblies. The nozzle assembly includes a heat sink 22 and a nozzle holder 23 fixedly mounted on the connecting base 19. The nozzle holder 23 is located directly below the heat sink 22. The top of the heat sink 22 has the same number of connectors 24 as the feeding assemblies. A heater 25 is installed inside the nozzle holder 23, and a nozzle 26 is fixedly mounted inside the heater 25. A connecting pipe 21 connects the heat sink 22 and the nozzle 26. The heat sink 22 has a channel for passing through the connectors 24 and the connecting pipe 21.

[0027] In use, the material enters from the connector 24 into the connecting pipe, then flows into the nozzle 26. The heater 25 heats and melts the material in the nozzle 26, which is then ejected from the bottom of the nozzle 26. It is mainly used for printing advertising lettering shells, and can print advertising lettering panels and shells in multiple colors.

[0028] The feeding assembly includes a feeding seat 27 fixedly mounted on a connecting base 19. A drive source 06 is fixedly mounted on the feeding seat 27, and a feeding shaft 28 is fixedly mounted on the output end of the drive source 06. An auxiliary wheel 29 is provided on one side of the feeding shaft 28, and a passage for material to pass through is provided between the auxiliary wheel 29 and the feeding shaft 28, the passage penetrating vertically through the feeding seat 27. The material passes through the passage and is inserted into the connector 24. When the drive source 06 mounted on the feeding seat 27 is working, it drives the material to move towards the connector 24. It should be noted that the aforementioned drive sources 06 are all servo motors.

[0029] It should be noted that, for clarity, the fasteners described in this application are any one of screws, bolts, and bolts, and "drive sources" installed in different locations and of different types are identified by the same reference numeral "06".

[0030] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A three-color 3D printer, comprising a frame and a transmission component mounted on the frame, characterized in that, Includes: a printing component mounted on a transmission component; a printing assembly including a print base and a connecting base vertically slidably mounted on the print base; three feeding assemblies and one nozzle assembly mounted on the connecting base; the nozzle assembly located directly below the feeding assemblies; the nozzle assembly including a heat sink plate and a nozzle holder fixedly mounted on the connecting base; the nozzle holder located directly below the heat sink plate; the top of the heat sink plate having the same number of connectors as the feeding assemblies; a heater installed inside the nozzle holder; a nozzle fixedly mounted inside the heater; a connecting pipe connecting the heat sink plate and the nozzle; and a channel provided inside the heat sink plate for passing through the connectors and the connecting pipe.

2. The three-color 3D printer according to claim 1, characterized in that: The transmission component includes two guide beams mounted in parallel on the frame, a crossbeam slidably mounted on the two guide beams, a drive assembly for moving the crossbeam on the guide beams is mounted on the ends of the guide beams, and a power component for moving the printing assembly on the crossbeam is provided at the ends of the crossbeams.

3. The three-color 3D printer according to claim 2, characterized in that: The drive assembly includes a drive base fixedly mounted on the frame and two support bases. The two support bases are located at one end of two guide rail beams respectively. A drive source is fixedly mounted on the drive base. A drive shaft is located directly below the drive source. The drive shaft is rotatably mounted on the drive base. The two ends of the drive shaft are rotatably connected to the two support bases respectively.

4. The three-color 3D printer according to claim 3, characterized in that: The drive shaft is equipped with one drive wheel and two drive wheels. The drive wheel is fixedly installed in the middle of the drive shaft and located inside the drive seat. The two drive wheels are fixedly installed at both ends of the drive shaft and located inside the support seat. The drive wheel is fixedly installed on the output end of the drive source. The drive wheel is located directly above the transmission. The drive wheel and the drive wheel are connected by a drive synchronous belt.

5. The three-color 3D printer according to claim 4, characterized in that: The other end of each of the two guide rail beams is provided with an auxiliary seat, and a driven wheel is rotatably installed in each auxiliary seat. The driven wheel and the driving wheel are connected by a transmission synchronous belt. A sliding plate is fixedly installed on the transmission synchronous belt, and the sliding plate is located directly above the guide rail beam. The crossbeam is fixedly installed on the sliding plate.

6. The three-color 3D printer according to claim 5, characterized in that: Guide wheels are provided on both sides of the sliding plate, and guide columns adapted to the guide wheels are fixedly installed on both sides of the guide rail beam. Connecting plates are fixedly installed at both ends of the sliding plate, and connecting grooves are provided on the connecting plates. Fixed plates are provided in the connecting grooves, and the fixed plates and connecting plates are connected by fasteners. The transmission timing belt is located in the connecting grooves and between the fixed plates and the connecting plates. The printing components are slidably mounted on the crossbeam.

7. The three-color 3D printer according to claim 1, characterized in that: A sliding guide rail is vertically mounted on the print stand, and a connecting seat is fixedly mounted on the sliding guide rail. A drive source is fixedly mounted on the top of the print stand, and a lead screw is fixedly mounted on the output end of the drive source. A nut that matches the lead screw is mounted on the connecting seat.

8. The three-color 3D printer according to claim 7, characterized in that: The feeding assembly includes a feeding seat fixedly mounted on a connecting base, a drive source fixedly mounted on the feeding seat, a feeding shaft fixedly mounted on the output end of the drive source, an auxiliary wheel on one side of the feeding shaft, and a passage for material to pass through between the auxiliary wheel and the feeding shaft, the passage penetrating the feeding seat vertically.

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