A follow-up coloring 3D printer nozzle device

Abstract

The present invention provides a follow-up coloring 3D printer nozzle device, including a nozzle body; the upper end of the nozzle body is communicated with a radiator through a heating connection channel, and a coloring module and a brush head are sequentially connected to the lower end of the nozzle body; a guide pipe is arranged in the radiator, and a wire material is placed in the guide pipe; a channel is arranged in the nozzle body and is communicated with the guide pipe; a storage tank for storing pigments is arranged in the coloring module, and the storage tank is connected with a pigment pipe passing through the outer wall of the coloring module. The structure of the present invention is simpler, convenient for use and maintenance. During the forming process, the formed part is colored, while the printing layer lines are improved, the surface quality of the formed part is optimized, and the processing cycle for overall coloring of the formed part is shortened; the function of FDM forming follow-up coloring is realized, and the layer line phenomenon of the part during printing is improved.

Description

Technical Field

[0001] The present invention relates to a follow-up coloring 3D printer nozzle device, belonging to the technical field of 3D printing FDM forming. Background Art

[0002] The FDM forming technology is a 3D printing technology that uses wire material for hot melting forming. The wire material is sent to the hot melting nozzle by the wire feeding mechanism, heated and melted into a semi-liquid state in the nozzle, and then extruded out, selectively coated on the workbench, and quickly cooled to form a thin slice contour. According to the computer program control, the thin slice contour forming is repeated to achieve the rapid forming of a 3D model, which is generally used for the forming of parts or models with low requirements for surface accuracy and mechanical properties.

[0003] There are generally two ways to color the parts formed by FDM. One is painting or coating after printing is completed, and the other is forming with wire materials of different colors during the printing process. The former takes time and effort for coloring, and the latter requires continuous replacement of wire materials to meet the coloring requirements, and the surface quality is poor. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a follow-up coloring 3D printer nozzle device, which colors the formed wire material while following the printing process, can not only achieve the purpose of coloring parts or models, but also fill the printing layer lines with pigments to optimize the surface quality of parts or models, solves the coloring problem of FDM formed parts, and even the multi-color printing problem.

[0005] The present invention is achieved through the following technical solutions.

[0006] A follow-up coloring 3D printer nozzle device provided by the present invention includes a nozzle main body; the upper end of the nozzle main body is communicated with a radiator through a heating connection channel, and the lower end of the nozzle main body is sequentially connected with a coloring module and a brush head; a guide pipe is arranged in the radiator, and a wire material is placed in the guide pipe; a channel is arranged in the nozzle main body and is communicated with the guide pipe; a storage tank for storing pigments is arranged in the coloring module, and the storage tank is connected with a pigment pipe passing through the outer wall of the coloring module.

[0007] The heating connection channel is threadedly connected with the radiator.

[0008] The nozzle main body is threadedly connected with the coloring module, and the brush head is embedded in the lower end of the coloring module.

[0009] A gasket is used for sealing between the nozzle main body and the coloring module.

[0010] The radiator is provided with annular heat dissipation fins.

[0011] The brush head is annular.

[0012] A valve for controlling the flow rate of the pigment is provided on the pigment tube.

[0013] The bottom of the nozzle body is flush with the bottom of the brush head.

[0014] The beneficial effects of the present invention are as follows: the structure is simpler, it is convenient to use and maintain. During the forming process, the formed part is colored, while the printing layer lines are improved, the surface quality of the formed part is optimized, and the processing cycle for coloring the whole formed part is shortened; the function of following-up coloring during FDM forming is realized, and the layer line phenomenon of the part during printing is improved. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] In the figure: 1 - radiator, 2 - material guiding tube, 3 - heating connection channel, 4 - nozzle body, 5 - gasket, 6 - coloring module, 7 - pigment, 8 - pigment tube, 9 - brush head. Detailed Embodiments

[0017] The technical solution of the present invention will be further described below, but the scope of protection is not limited thereto.

[0018] Embodiment 1

[0019] As Figure 1 shown, a follow-up coloring 3D printer nozzle device includes a nozzle body 4; the upper end of the nozzle body 4 is communicated with a radiator 1 through a heating connection channel 3, and the lower end of the nozzle body 4 is sequentially connected with a coloring module 6 and a brush head 9; a material guiding tube 2 is arranged in the radiator 1, and a wire material is placed in the material guiding tube 2; a channel is arranged in the nozzle body 4 and is communicated with the material guiding tube 2; a storage tank for storing pigment 7 is arranged in the coloring module 6, and the storage tank is connected with a pigment tube 8 passing through the outer wall of the coloring module 6.

[0020] The heating connection channel 3 is threadedly connected to the radiator 1.

[0021] The nozzle body 4 is threadedly connected to the coloring module 6, and the brush head 9 is embedded in the lower end of the coloring module 6.

[0022] The nozzle body 4 and the coloring module 6 are sealed by a gasket 5.

[0023] The radiator 1 is provided with annular heat dissipation fins.

[0024] The brush head 9 is annular.

[0025] A valve for controlling the flow rate of the pigment 7 is provided on the pigment tube 8.

[0026] The bottom of the nozzle body 4 is flush with the bottom of the brush head 9.

[0027] Embodiment 2

[0028] A material guide tube 2 is provided in the middle of the radiator 1, and a wire material is provided in the material guide tube 2. The nozzle body 4 is communicated with the radiator 1 through the thread of the heating connection channel 3. There is a channel in the middle of the nozzle body 4 for the pigment 7 to pass through. The coloring module 6 is connected to the nozzle body 4 through a thread. The coloring module 6 has a tiny space for storing the pigment. The lower end of the coloring module 6 has a brush head 9.

[0029] Furthermore, the brush head 9 is close to the nozzle body 4.

[0030] Furthermore, the coloring module 6 is communicated with an external pigment tank through a pigment tube 8. During the printing and forming process, the brush head 9 can simultaneously perform coloring, which is simple and easy to use, convenient to clean, optimizes the forming surface quality, and can be filled with pigments 7 of various colors according to requirements.

[0031] Embodiment 3

[0032] The working process of the present invention is as follows:

[0033] 1. Connect to the printer main body structure, connect the radiator 1 to the heating connection channel 3, and then connect the heating connection channel 3 to the nozzle body 4 and the coloring module 6 as a whole. Fine-tune the height of the coloring module 6 to ensure that the position of the brush head 9 is flush with the mouth of the nozzle body 4. Insert the material guide tube 2 into the radiator 1, connect it to the heating connection channel 3 and fix it to ensure reliable fixation, and send the wire material into the device through the material guide tube 2.

[0034] 2. Heat the device until the wire material normally discharges from the mouth of the nozzle body 4, inject the colored pigment 7 through the pigment tube 8, control the pigment 7 to enter the coloring module 6 until the pigment 7 oozes out on the brush head 9.

[0035] 3. Control the printer to test print and debug the ratio of the coloring module 6 to the wire material ejection until a layer of printing can evenly cover the pigment 7.

[0036] 4. Clean the printing platform and start printing formally.

[0037] 5. Stop injecting the pigment 7 after printing is completed, and take out the colored part or model after the part or model has cooled down.

Claims

1. A follow-up coloring 3D printer nozzle device, comprising a nozzle body (4), characterized in that: The upper end of the nozzle body (4) is communicated with the radiator (1) through the heating connection channel (3). The lower end of the nozzle body (4) is sequentially connected with a coloring module (6) and a brush head (9). A material guiding pipe (2) is arranged in the radiator (1), and a wire material is placed in the material guiding pipe (2). A channel is arranged in the nozzle body (4) and is communicated with the material guiding pipe (2). A storage tank for storing pigment (7) is arranged in the coloring module (6), and the storage tank is connected with a pigment pipe (8) passing through the outer wall of the coloring module (6). The heating connection channel (3) is in threaded connection with the radiator (1). The nozzle body (4) is in threaded connection with the coloring module (6), and the brush head (9) is embedded at the lower end of the coloring module (6). A gasket (5) is used for sealing between the nozzle body (4) and the coloring module (6). The brush head (9) is annular. The bottom of the nozzle body (4) is flush with the bottom of the brush head (9).

2. The follow-up color spraying 3D printer nozzle device according to claim 1, wherein: The radiator (1) is provided with an annular heat sink.

3. The follow-up color application 3D printer nozzle device according to claim 1, characterized in that: A valve for controlling the flow rate of the pigment (7) is arranged on the pigment pipe (8).

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