Coloring device for 3D printer

Abstract

The invention discloses a coloring device for a 3D printer, and relates to the technical field of 3D printers, according to the technical scheme, the coloring device comprises a coloring shell, a second motor is arranged in the coloring shell, the output end of the second motor is provided with a first gear, the first gear is in meshed connection with a transmission rack and a second gear, and the top of the transmission rack is fixedly connected with a rotating mechanism; the upper portion of the rotating mechanism is fixedly connected with a pigment tank, the bottom of the pigment tank is fixedly connected with a feeding pipe, and the second gear is fixedly connected with a worm gear. Before coloring, different pigment tanks can be driven to move to the upper portion of the mixing cavity through a rotating mechanism, then a second motor is started to drive a first gear to rotate, the first gear rotates to drive a transmission rack to move, then the pigment tanks are driven to press downwards to insert a feeding pipe into the mixing cavity, and the splashing situation during pigment adding is effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of 3D printers, and particularly relates to a coloring device for a 3D printer. BACKGROUND

[0002] The coloring device for a 3D printer is an innovative technology in the field of additive manufacturing, aiming to break through the limitations of traditional single-color printing and endow three-dimensional models with rich color expression. The device, by integrating a multi-color consumable delivery system and an intelligent color adjustment algorithm, can dynamically switch colors or achieve gradient effects during printing without manual intervention, thus realizing precise coloring of complex patterns. Its applications cover artistic creation, industrial design, educational models and other fields, and it is particularly suitable for customized product production that requires high visual expression. Compared with post-processing coloring processes, the device significantly improves production efficiency, reduces material and time costs, and avoids the precision defects of manual painting. Through deep compatibility with mainstream slicing software, users can intuitively preview color effects and flexibly adjust parameters to meet individual needs. This technology not only expands the application boundaries of 3D printing, but also provides an efficient and environmentally friendly solution for creative realization and mass production, marking an important step towards full-color and intelligent additive manufacturing.

[0003] In the actual use process of the existing device, in multi-color printing, the traditional scheme often causes problems such as mottling, striping or clear boundary in color superposition areas due to pigment extrusion sequence, material flow difference or nozzle structure limitations. Therefore, a coloring device for a 3D printer is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problem in the prior art that in multi-color printing, the traditional scheme often causes problems such as mottling, striping or clear boundary in color superposition areas due to pigment extrusion sequence, material flow difference or nozzle structure limitations. Therefore, a coloring device for a 3D printer is proposed.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: The utility model provides a coloring device for 3D printer, including coloring casing, second motor is arranged inside the coloring casing, first gear is arranged at the output end of second motor, transmission rack and second gear are connected through the first gear, the top of transmission rack is fixedly connected with rotating mechanism, the upper portion of rotating mechanism is fixedly connected with pigment tank, the bottom of pigment tank is fixedly connected with feeding pipe, second gear is fixedly connected with worm gear, worm gear is connected with mixing cavity, and the mixing cavity is fixedly connected with coloring casing, and the end close to mixing cavity of worm gear is fixedly connected with mixing blade, the upper portion of coloring casing is provided with transmission mechanism, transmission mechanism is fixedly connected on the upper portion of 3D printer, and the bottom of 3D printer is provided with moving platform.

[0006] After the 3D printer completes printing, the model is moved to the lower portion of coloring casing by moving platform, different pigment tanks are moved to the top of mixing cavity by rotating mechanism before coloring, then the first gear is driven to rotate by starting second motor, the transmission rack is moved by the rotation of first gear, so that the feeding pipe arranged at the bottom of pigment tank is inserted into the inside of mixing cavity, the pigment in the inside of pigment tank is inserted into the inside of mixing cavity at the same time, different pigments are controlled to be added to make the pigments mix in the inside of mixing cavity, and the mixing blade is driven to rotate in the inside of mixing cavity by the rotation of second gear at the same time of adding pigment, so that the pigments in the inside of mixing cavity are automatically mixed in the process of adding pigments, the number of pigment tanks is multiple, and different pigments are arranged in the inside of pigment tanks, and the control valve is arranged at the connecting position of feeding pipe and pigment tank, and the pigments in the inside of pigment tank can be controlled to be added by the control valve.

[0007] The above technical scheme further comprises: The bottom of mixing cavity is provided with spray head, the bottom of spray head is fixedly connected with spray opening, the side of spray opening is provided with adjusting mechanism, the mixed pigments in the inside of mixing cavity are sent into spray opening and sprayed out by spray head, and the connecting position of spray opening and spray head is provided with bellow.

[0008] The adjusting mechanism comprises adjusting casing fixedly connected at the bottom of spray head, the side of adjusting casing is provided with fourth motor, and the output end of fourth motor is provided with adjusting assembly.

[0009] The adjusting assembly comprises sixth gear provided at the output end of fourth motor, the sixth gear is connected with gear groove, the gear groove is slidably connected with adjusting casing, only part of gear groove is provided with scale tooth at the upper portion, and the gear groove is driven to reciprocate by the rotation of sixth gear.

[0010] The gear groove is connected with fifth gear, the fifth gear is rotatably connected with adjusting casing, and the fifth gear is fixedly connected with spray opening.

[0011] The lifting shell is fixedly connected inside the colored shell, and a transmission rack is slidably connected inside the lifting shell.

[0012] The rotating mechanism comprises a rotating shell fixedly connected to the top of the transmission rack, and a third motor is arranged inside the rotating shell.

[0013] The rotating assembly comprises a third gear arranged at the output end of the third motor, a fourth gear is engagedly connected to the third gear, a connecting disc is fixedly connected to the fourth gear, and a pigment tank is fixedly connected to the connecting disc.

[0014] The transmission mechanism comprises a transmission shell fixedly connected to the top of the 3D printer, a first motor is arranged on one side of the transmission shell, a transmission wheel is arranged at the output end of the first motor, a transmission belt is drivingly connected to the transmission wheel, and a transmission member is fixedly connected to the upper part of the transmission belt.

[0015] The present application has the following advantages: 1、In the present application, the 3D printer is used to move the printed model to the bottom of the coloring shell after printing, and the rotating mechanism is used to move different pigment tanks to the upper part of the mixing cavity before coloring. Then, the second motor is started to rotate the first gear, which drives the transmission rack to move, and then drives the pigment tank to press down and insert the filling pipe into the mixing cavity. This effectively prevents the splashing of the pigment during addition, and the first gear rotation also synchronously drives the second gear to rotate, which drives the mixing blade to rotate. The mixing blade rotation automatically assists the mixing during pigment addition, fully stirs and dynamically mixes the switched pigment, ensures the color uniformity, and realizes the natural transition of gradient color or complex pattern. 2、In the present application, after the pigment is mixed, the mixed pigment is sent to the nozzle and sprayed out through the nozzle, so as to color the model. During the coloring process, the transmission mechanism is started to drive the coloring shell to move, so as to adjust the spraying position of the nozzle. During the spraying process, the adjusting mechanism is started to drive the nozzle to rotate, so as to adjust the spraying angle of the nozzle, effectively ensuring the coloring accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure diagram of a coloring device for a 3D printer is provided. Figure 2 A transmission member connection relationship diagram in the present application is provided. Figure 3 A coloring shell connection relationship diagram in the present application is provided. Figure 4 A coloring shell internal structure diagram in the present application is provided. Figure 5 Schematic diagram of the internal structure of the mixing chamber in the present invention; Figure 6 Schematic diagram of the internal structure of the rotating shell in the present invention; Figure 7 Schematic diagram of nozzle connection relationship in the present invention; Figure 8 Schematic diagram of the internal structure of the regulating shell in the present invention.

[0017] In the figure: 1. Coloring shell; 2. 3D printer; 3. Moving platform; 4. Transmission shell; 5. Transmission member; 6. First motor; 7. Transmission wheel; 8. Transmission belt; 9. Mixing chamber; 10. Nozzle; 11. Nozzle; 12. Adjustment shell; 13. Paint tank; 14. Feeding tube; 15. Rotating shell; 16. Lifting shell; 17. Transmission rack; 18. Second motor; 19. First gear; 20. Second gear; 21. Worm gear; 22. Worm; 23. Mixing blade; 24. Connecting plate; 25. Third motor; 26. Third gear; 27. Fourth gear; 28. Fourth motor; 29. ​​Fifth gear; 30. Gear slot; 31. Sixth gear. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1

[0020] like Figures 1-8 As shown, a coloring device for a 3D printer includes a coloring shell 1, a second motor 18 is provided inside the coloring shell 1, a first gear 19 is provided at the output end of the second motor 18, the first gear 19 is meshedly connected with a transmission rack 17 and a second gear 20, the top of the transmission rack 17 is fixedly connected to a rotating mechanism, the upper part of the rotating mechanism is fixedly connected to a paint tank 13, the bottom of the paint tank 13 is fixedly connected to a feeding tube 14, the second gear 20 is fixedly connected to a worm gear 21, the worm gear 21 is meshedly connected with a worm 22, the worm 22 is rotationally connected to the mixing chamber 9, the mixing blade 23 is fixedly connected to the coloring shell 1, and the mixing blade 23 is fixedly connected to the end of the worm 22 near the mixing chamber 9, a transmission mechanism is provided on the upper part of the coloring shell 1, the transmission mechanism is fixedly connected to the upper part of the 3D printer 2, and a moving platform 3 is provided at the bottom of the 3D printer 2.

[0021] After the 3D printer 2 completes printing, the model is moved to the lower part of the coloring shell 1 by the moving table 3, before coloring, different pigment tanks 13 are moved to the top of the mixing cavity 9 by the rotating mechanism, then the first gear 19 is driven to rotate by starting the second motor 18, the transmission rack 17 is moved by the rotation of the first gear 19, so that the filling pipe 14 arranged at the bottom of the pigment tank 13 is inserted into the mixing cavity 9, and the pigment in the pigment tank 13 is added into the mixing cavity 9 at the same time, the different pigments are controlled to be mixed in the mixing cavity 9, and the mixing blade 23 is driven to rotate in the mixing cavity 9 by the rotation of the second gear 20 at the same time, so that the pigments in the mixing cavity 9 are automatically mixed during the adding process, there are multiple pigment tanks 13 and different colors of pigments are arranged in the pigment tanks 13, and a control valve is arranged at the connection between the filling pipe 14 and the pigment tank 13, so that the addition of the pigment in the pigment tank 13 can be controlled.

[0022] The rotating mechanism comprises a rotating shell 15 fixedly connected to the top of the transmission rack 17, a third motor 25 is arranged in the rotating shell 15, a rotating assembly is arranged at the output end of the third motor 25, the rotating assembly comprises a third gear 26 arranged at the output end of the third motor 25, the third gear 26 is meshingly connected with a fourth gear 27, the fourth gear 27 is fixedly connected with a connecting disc 24, the connecting disc 24 is fixedly connected with the pigment tank 13, a lifting shell 16 is fixedly connected in the coloring shell 1, and the transmission rack 17 is slidably connected in the lifting shell 16.

[0023] In this embodiment, after printing by the 3D printer 2, the model is moved to the bottom of the coloring shell 1 by starting the moving table 3, before coloring, the third gear 26 is driven to rotate by starting the third motor 25, the fourth gear 27 meshingly connected with the third gear 26 is driven to rotate, and the connecting disc 24 fixedly connected with the fourth gear 27 is driven to rotate, different pigment tanks 13 are moved to the upper part of the mixing cavity 9 by the rotation of the connecting disc 24, then the first gear 19 is driven to rotate by starting the second motor 18, the transmission rack 17 meshingly connected with the first gear 19 is moved, and the stability of the transmission rack 17 during movement is effectively ensured by the lifting shell 16 slidably connected with the transmission rack 17, the filling pipe 14 is inserted into the mixing cavity 9 by the movement of the transmission rack 17, and the splashing of the pigments during the adding process is effectively prevented.

[0024] When pigment is added, the rotation of the first gear 19 can also synchronously drive the rotation of the second gear 20. The rotation of the second gear 20 drives the fixedly connected worm gear 21 to rotate, and the rotation of the worm gear 21 drives the meshing worm 22 to rotate. The rotation of the worm 22 drives the fixedly connected mixing blade 23 to rotate. The rotation of the mixing blade 23 can automatically assist mixing when pigment is added, fully stir and dynamically mix the switched pigments, ensure color uniformity, and achieve a natural transition of gradient colors or complex patterns.

[0025] Example 2

[0026] like Figures 1-8 As shown, a nozzle 10 is provided at the bottom of the mixing chamber 9, and a nozzle 11 is fixedly connected to the bottom of the nozzle 10. An adjusting mechanism is provided on one side of the nozzle 11. The mixed pigment in the mixing chamber 9 can be sent into the nozzle 11 and sprayed out through the nozzle 10. A bellows is provided at the connection between the nozzle 11 and the nozzle 10. The adjusting mechanism includes an adjusting shell 12 fixedly connected to the bottom of the nozzle 10, and a fourth motor 28 is provided on one side of the adjusting shell 12. An adjusting component is provided at the output end of the fourth motor 28. The adjusting component includes a sixth gear 31 provided at the output end of the fourth motor 28. The sixth gear 31 is meshed with a gear slot 30, and the gear slot 30 is slidably connected to the adjusting shell 12. Only a portion of the upper part of the gear slot 30 is provided with a ruler tooth. The gear slot 30 can be driven to reciprocate by rotating the sixth gear 31. The gear slot 30 is meshed with a fifth gear 29, and the fifth gear 29 is rotatably connected to the adjusting shell 12. The fifth gear 29 is fixedly connected to the nozzle 11.

[0027] The transmission mechanism includes a transmission housing 4 fixedly connected to the top of the 3D printer 2, a first motor 6 is provided on one side of the transmission housing 4, a transmission wheel 7 is provided at the output end of the first motor 6, the transmission wheel 7 is connected to the transmission belt 8, and a transmission member 5 is fixedly connected to the upper part of the transmission belt 8.

[0028] In this embodiment, after the pigments are mixed, the mixed pigments can be fed into the nozzle 11 through the nozzle 10 and sprayed out, thereby coloring the model. During the coloring process, the first motor 6 is started to drive the transmission wheel 7 to rotate, and the rotation of the transmission wheel 7 drives the transmission belt 8 connected to the transmission to rotate. The rotation of the transmission belt 8 can drive the fixedly connected transmission member 5 to move, and then drive the coloring shell 1 to move, thereby adjusting the spraying position of the nozzle 11.

[0029] During the spraying process, by starting the fourth motor 28, the sixth gear 31 can be driven to rotate. The rotation of the sixth gear 31 drives the meshing gear slot 30 to move back and forth, and the reciprocating movement of the gear slot 30 can drive the meshing fifth gear 29 to rotate back and forth. The reciprocating rotation of the fifth gear 29 can drive the nozzle 11 to rotate, thereby adjusting the spraying angle of the nozzle 11 and effectively ensuring the coloring accuracy.

[0030] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and alterations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A colouring device for a 3D printer, comprising a colouring housing (1), characterised in that, The inside of the colored shell (1) is provided with a second motor (18), the output end of the second motor (18) is provided with a first gear (19), the first gear (19) is engaged with a transmission rack (17) and a second gear (20), the top of the transmission rack (17) is fixedly connected with a rotating mechanism, the upper part of the rotating mechanism is fixedly connected with a pigment tank (13), the bottom of the pigment tank (13) is fixedly connected with a feeding pipe (14), the second gear (20) is fixedly connected with a worm gear (21), the worm gear (21) is engaged with a worm (22), the worm (22) is rotatably connected between the mixing cavity (9) and the colored shell (1), the mixing cavity (9) is fixedly connected between the mixing cavity (9) and the colored shell (1), the end of the worm (22) close to the mixing cavity (9) is fixedly connected with a mixing blade (23), the upper part of the colored shell (1) is provided with a transmission mechanism, the transmission mechanism is fixedly connected to the upper part of the 3D printer (2), the bottom of the 3D printer (2) is provided with a moving table (3). After the 3D printer (2) completes printing, the model is moved to the lower part of the colored shell (1) by the moving table (3), different pigment tanks (13) are moved to the top of the mixing cavity (9) by the rotating mechanism before coloring, then the second motor (18) is started to drive the first gear (19) to rotate, the first gear (19) drives the transmission rack (17) to move, thereby the feeding pipe (14) provided at the bottom of the pigment tank (13) is inserted into the inside of the mixing cavity (9), the pigment in the pigment tank (13) enters the inside of the mixing cavity (9) at the same time that the feeding pipe (14) is inserted, different pigments are controlled to be added to make the pigments mix in the mixing cavity (9), and the mixing blade (23) is driven to rotate in the mixing cavity (9) by the rotation of the second gear (20) at the same time that the pigments are added, thereby the pigments in the mixing cavity (9) are automatically mixed during the pigment adding process.

2. The coloring device for a 3D printer according to claim 1, wherein, The bottom of the mixing cavity (9) is provided with a spray head (10), the bottom of the spray head (10) is fixedly connected with a spray port (11), one side of the spray port (11) is provided with an adjusting mechanism.

3. The coloring device for a 3D printer according to claim 2, wherein The adjusting mechanism comprises an adjusting shell (12) fixedly connected to the bottom of the spray head (10), one side of the adjusting shell (12) is provided with a fourth motor (28), the output end of the fourth motor (28) is provided with an adjusting assembly.

4. The coloring device for a 3D printer according to claim 3, wherein, The adjusting assembly comprises a sixth gear (31) provided at the output end of the fourth motor (28), the sixth gear (31) is engaged with a gear groove (30), the gear groove (30) is slidably connected between the adjusting shell (12).

5. The coloring device for a 3D printer according to claim 4, wherein, The gear groove (30) is engaged with a fifth gear (29), the fifth gear (29) is rotatably connected between the adjusting shell (12), the fifth gear (29) is fixedly connected with the spray port (11).

6. The coloring device for a 3D printer according to claim 1, wherein, The inside of the colored shell (1) is fixedly connected with a lifting shell (16), the inside of the lifting shell (16) is slidably connected with the transmission rack (17).

7. The coloring device for a 3D printer according to claim 1, wherein The rotating mechanism comprises a rotating shell (15) fixedly connected at the top of a transmission rack (17), a third motor (25) is arranged inside the rotating shell (15), and a rotating assembly is arranged at the output end of the third motor (25).

8. The coloring device for a 3D printer according to claim 7, wherein, The rotating assembly comprises a third gear (26) arranged at the output end of the third motor (25), the third gear (26) is in meshing connection with a fourth gear (27), the fourth gear (27) is fixedly connected with a connecting disc (24), and the connecting disc (24) is fixedly connected with a pigment tank (13).

9. The coloring device for a 3D printer according to claim 1, wherein, The transmission mechanism comprises a transmission shell (4) fixedly connected at the top of a 3D printer (2), a first motor (6) is arranged on one side of the transmission shell (4), a transmission wheel (7) is arranged at the output end of the first motor (6), the transmission wheel (7) is in transmission connection with a transmission belt (8), and a transmission piece (5) is fixedly connected to the upper portion of the transmission belt (8).

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