Novel color FDM 3D printer

Abstract

The utility model discloses a novel color FDM3D printer, which belongs to the technical field of printers, and comprises a printer main body, a 3D printing single-head four-input assembly is arranged on the inner side of the printer main body, and the novel color FDM3D printer can select consumables with four colors of cyan, magenta, yellow and black and convey the consumables into a throat pipe based on a CMYK color mixing scheme, so that the 3D printing single-head four-input assembly is formed. Pigments entering the melting channel are heated through the heating pipe and finally enter the mixing cavity to be mixed together, the temperature change of the heating pipe is sensed through the thermistor, meanwhile, the throat pipe is subjected to heat dissipation treatment through the heat dissipater, and through mixing of different proportions, the heat dissipation effect is improved. The color, purity and saturation which can be generated after mixing are checked, a color card is manufactured to serve as a color database, and a function relation is established between the color in the color database and the pulse of a feeding motor, so that the color can be quantitatively calculated, and accurate color 3D printing is performed.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and more specifically to a novel color FDM 3D printer. Background Art

[0002] 3D printing technology is widely used in our lives, from food, clothing, housing and transportation to aerospace equipment. The continuous expansion of the market has gradually increased the demand for related technologies. Single-color 3D printing technology can no longer meet users' needs for personalized products. At present, the market has an increasing demand for 3D printers that support multi-color printing, mixed-color printing, full-color printing, and custom color printing.

[0003] However, color FDM 3D printing technology is still in the development stage, domestic color 3D printing equipment is still imperfect, and the color difference caused by insufficient mixing of consumables is a relatively large difficulty. For this reason, this project is committed to developing a four-in-one-out color FDM 3D printer, which controls the change of color gradient after melting and mixing consumables of different colors, solves the problem of insufficient material mixing, reduces the color difference caused by insufficient material mixing, and meets people's growing demand for high technology and high standards in 3D printing. Therefore, we proposed a new color FDM 3D printer to solve the above problems. Utility Model Content

[0004] Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a new color FDM3D printer, which can select cyan, magenta, yellow and black consumables based on the CMYK color mixing scheme, transport them to the throat, heat the pigments entering the melting channel through the heating tube, and finally enter the mixing chamber to mix the multiple pigments together, and sense the temperature change of the heating tube through the thermistor, and dissipate the heat of the throat through the radiator. Through mixing in different proportions, the color, purity and saturation that can be produced after mixing are tested, and a color card is made as a color database. A functional relationship is established between the colors in the color database and the pulses of the feeding motor, so that the colors can be quantitatively calculated, thereby making accurate color 3D printing.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A novel color FDM 3D printer comprises a printer body, wherein a 3D printing single-head four-input assembly is installed inside the printer body;

[0008] The 3D printing single-head four-input device includes a mounting base installed on the inner side of the printer body, a nozzle arranged below the mounting base and arranged in a conical structure, a throat fixed between the nozzle and the mounting base and arranged at an angle, a melting channel arranged on the inner side of the nozzle and conductively connected to the output end of the throat, a mixing chamber opened at the bottom end of the nozzle and conductively connected to the melting channel, a radiator installed on the outer side of the throat, a heating tube fixedly connected to the center position of the top of the nozzle, and a thermistor installed on one side of the heating tube.

[0009] Furthermore, a mounting window is provided on the surface of the mounting seat, and the mounting window passes through the mounting seat;

[0010] A fan is installed inside the installation window, and an air outlet end of the fan faces the nozzle.

[0011] Furthermore, the number of the throats is four, and the four throats are symmetrically arranged in pairs.

[0012] Furthermore, the angle between the axis of the throat and the axis of the nozzle is 45°.

[0013] Furthermore, the radiator is arranged in a fin structure and is made of copper-aluminum alloy.

[0014] Furthermore, the input end of the throat is conductively connected to a feeding pipe, and the feeding pipe is a flexible plastic hose.

[0015] Furthermore, the input end of the throat extends to above the corner of the mounting seat.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] This solution is based on the CMYK color mixing solution. Four colors of consumables, namely cyan, magenta, yellow and black, are selected and transported to the throat. The pigments entering the melting channel are heated by the heating tube, and finally enter the mixing chamber to mix the various pigments together. The temperature change of the heating tube is sensed by the thermistor, and the throat is cooled by the radiator. By mixing in different proportions, the color, purity and saturation produced after mixing are tested, and a color card is made as a color database. A functional relationship is established between the colors in the color database and the pulses of the feeding motor, so that the colors can be quantitatively calculated, thereby performing accurate color 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2This is a schematic diagram of the structure of a 3D printing single-head four-input component of the utility model;

[0020] Figure 3 It is a schematic side view of the nozzle of the utility model;

[0021] Figure 4 It is a schematic cross-sectional view of the nozzle AA portion of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Printer body; 2. Mounting base; 3. Nozzle; 4. Thermistor; 5. Throat; 6. Melting channel; 7. Mixing chamber; 8. Radiator; 9. Heating tube; 10. Feeding tube; 11. Fan. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model. Example

[0025] See also Figure 1-4 , a new color FDM 3D printer, comprising a printer body 1, a 3D printing single-head four-input assembly is installed inside the printer body 1;

[0026] The 3D printing single-head four-input device includes a mounting base 2 mounted on the inside of a printer body 1, a nozzle 3 arranged below the mounting base 2 and arranged in a conical structure, a throat 5 fixed between the nozzle 3 and the mounting base 2 and arranged at an angle, a melting channel 6 arranged on the inside of the nozzle 3 and conductively connected to the output end of the throat 5, a mixing chamber 7 opened at the bottom end of the nozzle 3 and conductively connected to the melting channel 6, a radiator 8 installed on the outside of the throat 5, a heating tube 9 fixedly connected to the center position of the top of the nozzle 3, and a thermistor 4 installed on one side of the heating tube 9;

[0027] It should be noted that, 1. Based on the CMYK color mixing scheme, four colors of consumables, namely cyan, magenta, yellow and black, are selected and transported to the throat 5. The pigments entering the melting channel 6 are heated by the heating tube 9, and finally enter the mixing chamber 7 to mix the various pigments together. The temperature change of the heating tube 9 is sensed by the thermistor 4, and the throat 5 is heat-dissipated by the radiator 8. By mixing in different proportions, the color, purity and saturation that can be produced after mixing are tested, and a color card is made as a color database.

[0028] Establish a functional relationship between the colors in the color database and the pulses of the feeding motor, so that the colors can be quantitatively calculated, thus making accurate color 3D printing possible;

[0029] 2. According to the four-input and one-output structure of the printhead, the instructions required by the printer are developed through the Prusa slicing software, the virtual base and mode are started in the Marlin firmware, the CMYK values ​​of the base color consumables are defined, and the color mixing tool Color Schemer Studio is used for assistance. The Marlin firmware is responsible for interpreting these instructions and passing them to other electronic components to complete the printing task.

[0030] like Figure 2 As shown, a mounting window is provided on the surface of the mounting seat 2, and the mounting window passes through the mounting seat 2;

[0031] A fan 11 is installed on the inner side of the installation window, and the air outlet end of the fan 11 faces the nozzle 3;

[0032] The heat sink 8 is arranged in a fin structure, and the heat sink 8 is made of copper-aluminum alloy;

[0033] It should be noted that the operation of the fan 11 can effectively speed up the air flow near the radiator 8 , thereby improving the heat dissipation effect of the radiator 8 on the throat pipe 5 .

[0034] like Figure 2 , Figure 4 As shown, there are four throat pipes 5, and the four throat pipes 5 are symmetrically arranged in pairs, and the angle between the axis of the throat pipe 5 and the axis of the nozzle 3 is 45°;

[0035] It should be noted that the pigments entering the melting channel 6 are heated by the heating tube 9 and finally enter the mixing chamber 7 to mix the various pigments together, which is conducive to sufficient mixing of the pigments inside the mixing chamber 7 .

[0036] like Figure 2 As shown, the input end of the throat pipe 5 is connected to the feed pipe 10, and the feed pipe 10 is a flexible plastic hose. The input end of the throat pipe 5 extends to the top of the corner of the mounting seat 2;

[0037] It should be noted that this is conducive to the installation between the feeding pipe 10 and the throat pipe 5 .

[0038] When in use: 1. Based on the CMYK color mixing scheme, four colors of consumables, cyan, magenta, yellow and black, are selected and transported to the throat 5. The pigments entering the melting channel 6 are heated by the heating tube 9, and finally enter the mixing chamber 7 to mix the various pigments together. The temperature change of the heating tube 9 is sensed by the thermistor 4, and the throat 5 is heat-dissipated by the radiator 8. By mixing in different proportions, the color, purity and saturation that can be produced after mixing are tested, and a color card is made as a color database.

[0039] Establish a functional relationship between the colors in the color database and the pulses of the feeding motor, so that the colors can be quantitatively calculated, thus making accurate color 3D printing possible;

[0040] 2. According to the four-input and one-output structure of the printhead, the instructions required by the printer are developed through the Prusa slicing software, the virtual base and mode are started in the Marlin firmware, the CMYK values ​​of the base color consumables are defined, and the color mixing tool Color Schemer Studio is used for assistance. The Marlin firmware is responsible for interpreting these instructions and passing them to other electronic components to complete the printing task.

[0041] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A novel color FDM 3D printer, comprising a printer body (1), characterized in that: A 3D printing single-head four-input assembly is installed on the inner side of the printer body (1); The 3D printing single-head four-input device comprises a mounting seat (2) mounted on the inner side of the printer body (1), a nozzle (3) arranged below the mounting seat (2) and arranged in a conical structure, a throat (5) fixed between the nozzle (3) and the mounting seat (2) and arranged at an angle, a melting channel (6) arranged on the inner side of the nozzle (3) and conductively connected to the output end of the throat (5), a mixing chamber (7) opened at the bottom end of the nozzle (3) and conductively connected to the melting channel (6), a radiator (8) mounted on the outer side of the throat (5), a heating tube (9) fixedly connected to the center position of the top of the nozzle (3), and a thermistor (4) mounted on one side of the heating tube (9).

2. A new color FDM 3D printer according to claim 1, characterized in that: A mounting window is provided on the surface of the mounting seat (2), and the mounting window passes through the mounting seat (2); A fan (11) is installed on the inner side of the installation window, and the air outlet end of the fan (11) faces the nozzle (3).

3. A new color FDM 3D printer according to claim 1, characterized in that: Specifically, four throats (5) are provided, and the four throats (5) are symmetrically arranged in pairs.

4. A new color FDM 3D printer according to claim 1, characterized in that: The angle between the axis of the throat (5) and the axis of the nozzle (3) is 45°.

5. A new color FDM 3D printer according to claim 1, characterized in that: The heat sink (8) is arranged in a fin structure, and the heat sink (8) is made of a copper-aluminum alloy.

6. A new color FDM 3D printer according to claim 1, characterized in that: The input end of the throat (5) is conductively connected to a feeding pipe (10), and the feeding pipe (10) is a flexible plastic hose.

7. A new color FDM 3D printer according to claim 1, characterized in that: The input end of the throat (5) extends to above the corner of the mounting seat (2).

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