阅读说明：本技术 彩色3d打印机 (Color 3D printer ) 是由 孙伟 冯艳艳 黄部东 于 2019-10-29 设计创作，主要内容包括：一种彩色3D打印机,属于3D打印技术领域,用于解决彩色打印色彩不丰富、混色、配色难度大的问题,包括打印头,其特征在于,所述打印头设有储料仓、打印气缸、切割气缸、载料台、粘结剂通道,所述储料仓连接在所述打印头顶板的一端,所述打印头顶板的另一端设有支柱,所述支柱远离所述打印头顶板的一端设有定位板,所述定位板上设有所述打印气缸和所述切割气缸,所述载料台设置在所述打印气缸下方,用于承接切割下来的用于打印的色料块,在所述载料台上设有粘结剂池。本发明通过设置可自转的带有若干料盘的储料仓,实现了多种色料的选择供给；通过设置切割气缸和打印气缸,实现了不同颜色色料的打印,从而实现了产品的彩色打印。(The utility model provides a colored 3D printer, belongs to 3D and prints technical field for solve the colored problem that the color is not abundant, the colour mixture, the degree of difficulty is big of matching colors of printing, including beating printer head, its characterized in that, beat printer head and be equipped with the storage silo, print the cylinder, cut the cylinder, carry material platform, binder passageway, the storage silo is connected beat the one end of printer head roof, the other end that beats the printer head roof is equipped with the pillar, the pillar is kept away from the one end that beats the printer head roof is equipped with the locating plate, be equipped with on the locating plate print the cylinder with cut the cylinder, it is in to carry the material platform setting to be in print the cylinder below for accept the cutting pigment piece that gets off and be used for printing. The invention realizes the selective supply of various pigments by arranging the storage bin which can rotate and is provided with a plurality of material trays; through setting up the cutting cylinder and printing the cylinder, realized the printing of different colour colouring materials to the colour printing of product has been realized.)

1. The utility model provides a colored 3D printer, is including beating printer head, its characterized in that, beat printer head and be equipped with the storage silo, print the cylinder, cut the cylinder, carry the material platform, the storage silo is connected beat the one end of printer head roof, the other end that beats the printer head roof is equipped with the pillar, the pillar is kept away from the one end that beats the printer head roof is equipped with the locating plate, be equipped with on the locating plate print the cylinder with cut the cylinder, carry the material platform to set up print the cylinder below for accept the cutting pigment piece that gets off and be used for printing carry the material bench to be equipped with the binder pond.

2. The color 3D printer according to claim 1, wherein the print head is disposed on a body of the color 3D printer, the body is provided with a base frame, an X-axis structure, a Y-axis structure and a Z-axis structure, the Y-axis structure is disposed on a top of the base frame, the X-axis structure is disposed on the Y-axis structure, the Z-axis structure is disposed on the X-axis structure, and a print platform is further disposed below the Z-axis structure.

3. The color 3D printer according to claim 1, wherein the storage bin is connected to the print head top plate through the servo motor, and the servo motor is used to drive the storage bin to rotate.

4. The color 3D printer according to claim 3, wherein the storage bin is a shaft barrel structure provided with a central shaft, the storage bin can rotate around the central shaft, and the central shaft is driven by a servo motor I; the material storage device is characterized in that a plurality of material trays are arranged on the periphery of the middle shaft, the material trays are arranged on the upper portion of the material storage bin, and a clamping mechanism of a pigment belt is further arranged on the lower portion of the material storage bin.

5. The color 3D printer according to claim 3, wherein there are at least two of said trays.

6. The color 3D printer according to claim 3, wherein the clamping mechanism comprises a feeding wheel, a guide wheel and a second servo motor, the second servo motor is used for driving the feeding wheel, and the guide wheel is used for channeling the color ribbon to the material loading table.

7. The color 3D printer according to claim 1, wherein the printing cylinder is disposed on the positioning plate via a slide rail, thereby enabling the printing cylinder to move between a material taking position and a printing position.

8. The color 3D printer according to claim 1, wherein the cutting cylinder is disposed at an edge of the positioning plate near the direction of the storage bin.

9. The color 3D printer according to claim 1, characterized in that the color 3D printer is further provided with a control system, the control system is arranged on the color 3D printer in the form of an industrial personal computer, and the control system is used for receiving data from an upper computer.

10. The color 3D printer according to claim 9, wherein the color 3D printer is operated by a process comprising,

the upper computer transmits the three-dimensional model slice data to the control system;

the control system issues an instruction for the print head to travel to a starting position, the print head being actuated to a print starting position;

the storage bin provided with at least 2 charging trays with different colors switches the color required by current printing to the position corresponding to the loading platform according to the instruction of the control system;

the clamping mechanism is driven by a servo motor II to convey pigment with a specified length to the material carrying platform under a corresponding instruction;

when the control system receives a signal that the clamping mechanism is conveyed in place, a cutting instruction is sent out, the printing cylinder compresses the color belt conveyed to the material loading platform, and the cutting cylinder cuts the color belt into color blocks which can be used for printing;

under the pressure action of the printing cylinder, the color block enters an adhesive pool arranged on the material loading platform, so that an adhesive is attached to one end face of the color block;

starting a negative pressure system on a printing cylinder, enabling the color material block to be adsorbed to a printing position from a binder pool by the printing cylinder, pressing the color material block to a corresponding position of a printing platform by the printing cylinder, sending a printing completion signal to a control system, and enabling the printing cylinder to return to a material taking position from the printing position;

the control program returns to the step 2) again to start the printing of the next color material block until the printing of the whole product is finished.

Technical Field

The invention relates to the technical field of 3D printing, in particular to color 3D printing equipment.

Background

The 3D printing technology is considered as a key technology for promoting transformation and upgrade of the conventional manufacturing industry, and is also concerned by more and more fields. At present, the conventional 3D printing technologies, such as SLA (light cured molding), SLS (selective laser sintering), LOM (layered solid manufacturing), FDM (fused deposition modeling), 3DP (three-dimensional powder bonding), etc., cannot realize color 3D printing. Research on color 3D printing technology has focused on the study of conventional FDM to both increase the number of extrusion heads and color mixing before extrusion. By improving the FDM equipment to realize color 3D printing, if each color is provided with an independent extrusion mechanism, the balance between the richness of colors and the complexity of an extrusion head is inevitably considered, and the basic realization is two-color printing at present. The scheme of mixing colors before extrusion has great technical difficulty in color control and is not easy to realize. With the increasing demand of color 3D printing, it is necessary to develop a color 3D printer with rich colors and simple structure.

Disclosure of Invention

The invention overcomes the problems of insufficient rich colors, color mixing and large color matching difficulty in the conventional 3D printing, and provides a color 3D printer which can replace the required colors at any time, so that the printable product has richer and more random colors.

A color 3D printer comprises a printer body and a printing head arranged on the printer body, wherein the printer body is provided with a basic frame, an X-direction shaft structure, a Y-direction shaft structure and a Z-direction shaft structure, the Y-direction shaft structure is arranged at the top of the basic frame, the X-direction shaft structure is arranged on the Y-direction shaft structure, the Z-direction shaft structure is arranged on the X-direction shaft structure, and a printing platform is further arranged below the Z-direction shaft structure; the printing head is arranged on the Z-axis structure; beat printer head and be equipped with the storage silo, print the cylinder, cut the cylinder, carry material platform, binder passageway, the storage silo is connected beat the one end of printer head roof, the other end of printer head roof is equipped with the pillar, the pillar is kept away from the one end of beating the printer head roof is equipped with the locating plate, be equipped with on the locating plate print the cylinder with the cutting cylinder, it sets up to carry the material platform print the cylinder below for accept the pigment piece that is used for printing that cuts off carry the material bench and go back the binder pond, the one end of binder passageway connect in binder liquid storage bucket, the other end connect in the binder pond.

Preferably, the fuselage is in contact with the ground through the base frame, a cross beam is arranged at the top of the base frame, and the Y-axis structure is arranged on the cross beam; the X-axis structure can reciprocate along the Y-axis structure; the Z-axis structure can reciprocate along the X-axis structure, and the Z-axis structure can reciprocate in the Z direction. The printing head is arranged on the Z-axis structure, and three-dimensional movement of the printing head above the printing platform is realized through the X-axis structure, the Y-axis structure and the Z-axis structure.

Preferably, the storage bin is of a shaft barrel structure provided with a middle shaft, the storage bin can rotate around the middle shaft, and the middle shaft is driven by a servo motor I; the material storage device is characterized in that a plurality of material discs are arranged on the periphery of the middle shaft, the material discs are arranged on the upper portion of the material storage bin, a clamping mechanism of a pigment belt is further arranged on the lower portion of the material storage bin, the clamping mechanism is used for clamping the pigment belt from the material discs, and meanwhile, the clamping mechanism also has the function of pulling the pigment belt, namely the pigment belt is pulled out from the material discs.

Preferably, the storage bin is connected to the top plate of the printing head through the servo motor, so that the storage bin can rotate along the central axis, and switching among the charging trays with different colors can be realized.

More preferably, the material tray is provided with at least two, so that the printing of at least two-color products is realized.

Preferably, the clamping mechanism is provided with a feeding wheel, a guide wheel and a second servo motor, the feeding wheel is driven by the second servo motor, and the clamping mechanisms correspond to the material trays one by one, namely one material tray corresponds to one clamping mechanism.

Preferably, the printing cylinder passes through the slide rail setting and is in on the locating plate to realize printing the cylinder and getting material position and printing the position and remove, it sets up in year material platform top to get the material position, it sets up to print the position outside the storage silo shell, in order to conveniently print, avoid the interference between storage silo and printing platform.

Preferably, the cutting cylinder sets up locating plate edge, and be located the printing cylinder and get the outside of material position, also promptly the cutting cylinder sets up near the storage silo direction the edge of locating plate.

Preferably, the cross section of the color material belt is a basic geometric shape such as a square, a rectangle or a circle.

The technical scheme of the invention has the beneficial effects that: the storage bin which can rotate is provided with a plurality of material trays, so that the selective supply of various pigments is realized; through setting up the cutting cylinder and printing the cylinder, realized the printing of different colour colouring materials to the colour printing of product has been realized.

Drawings

FIG. 1 is a schematic diagram of a color 3D printer;

FIG. 2 is a schematic view of a printhead structure;

FIG. 3 is a schematic view of the internal structure of the storage silo;

FIG. 4 is a schematic top view of the storage bin;

in the figure, 1-base frame; 2-Y axis structure; 3-X axial structure; 4-Z-axis structure; 5-a print head; 51-a storage bin; 511-medial axis; 512-a housing; 513-material tray; 514-colored tape; 515-a servo motor I; 516-a clamping mechanism; 52-a cutting cylinder; 53-print cylinder; 54-a loading platform; 56-printhead top plate; 57-a pillar; 58-positioning plate; 6-printing platform.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the detailed description will be given according to the embodiments of the drawings, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

The specific structure and operation of a color 3D printer and its printhead as shown in fig. 1 to 4 are described in detail as follows.

A color 3D printer comprises a base frame 1, a Y-axis structure 2, an X-axis structure 3, a Z-axis structure 4, a printing head 5 and a printing platform 6. The foundation frame 1 is arranged on the ground, an H-shaped cross beam is arranged at the other end far away from the ground, the Y-axis structures 2 are symmetrically arranged on two edges of the H-shaped cross beam, the X-axis structures 3 are arranged on the transverse sections of the H-shaped cross beam, and the transverse sections of the H-shaped cross beam are arranged on the Y-axis structures 2, so that the X-axis structures 3 do reciprocating motion along the Y-axis structures 2; the Z-axis structure 4 is arranged on the X-axis structure 3, so that the Z-axis structure 4 can reciprocate horizontally and vertically; the printing head 5 is arranged at the lower end of the Z-axis structure 4, so that the movement of the printing head 5 in the three-dimensional direction above the printing platform 6 is realized, and the printing function of the color 3D printer is realized. The printing platform 6 is used for receiving a printed product, that is, the printing head 5 prints the product on the printing platform 6 under the instruction of a predetermined program.

The print head 5 is provided with a storage bin 51, a cutting cylinder 52, a printing cylinder 53, a loading table 54, an adhesive passage, a print head top plate 56, a support post 57 and a positioning plate 58. The printing head 5 is connected to the tail end of the Z-axis structure 4 through the printing head top plate 56; the storage bin 51 and the support post 57 are arranged on the other side surface of the printing head top plate 56 opposite to the Z-axis structure 4, the storage bin 51 and the support post 57 are respectively located at two ends of the printing head top plate 56, the storage bin 51 is connected to the printing head top plate 56 through a first servo motor 515, and the first servo motor 515 is connected with the middle shaft 511, that is, the first servo motor 515 drives the middle shaft 511 to rotate; one end of the strut 57 is connected to the print head top plate 56, the other end of the strut 57 is provided with the positioning plate 58, the positioning plate 58 is further provided with a slide rail, the printing cylinder 53 is vertically connected to the slide rail through a fixed end, and a movable end of the printing cylinder 53 is used for moving the cut color block from the material loading table 54 to a corresponding position of the printing platform 6 specified by a program, so as to complete one-time printing work; in the direction close to the storage bin 51, the positioning plate 58 is further provided with a cutting cylinder 52, and the cutting cylinder 52 is used for cutting the ribbon 514, that is, the cutting cylinder 52 cuts off a certain amount or a certain length of the ribbon 514 according to the program specification to form a ribbon block with a size suitable for printing; a certain volume of the pigment belt 514 to be cut is placed on the material loading platform 54 and is pressed and held by the tail end of the movable end of the printing air cylinder 53, when the pigment belt 514 is cut off, the cut pigment blocks enter the adhesive pool on the material loading platform 54 under the pressure of the printing air cylinder 53, so that one end face of each pigment block is adhered with the adhesive, and when the pigment belt is moved to the designated position of the printing platform 6 by the printing air cylinder 53, the pigment belt can be adhered with the previous pigment block, so that a complete product structure is formed; the printing cylinder 53 corresponding to the material loading platform 54 is located at a material taking position, the other end of the slide rail is located at a printing position of the printing cylinder 53, and the printing position is located outside the shell 512 of the storage bin 51, so that interference between the storage bin 51 and the printing cylinder 53 is avoided, and good printing operation is realized. The storage bin 51 is provided with a middle shaft 511, a shell 512, a material tray 513, a pigment belt 514, a first servo motor 515 and a clamping mechanism 516, the shell 512 is divided into an upper part and a lower part, the upper part is of a U-shaped structure, the middle shaft 511 is symmetrically arranged through one end, the top of the upper part of the shell 512 is provided with a plurality of supports, the supports are used for installing the material tray 513, the lower part of the shell 512 is of a flat plate structure and is also symmetrically arranged through the other end of the middle shaft 511; the clamping mechanisms 516 are arranged on the lower half part of the shell 512, and the clamping mechanisms 516 are in one-to-one correspondence with the trays 513, namely one clamping mechanism 516 is arranged below each tray 513, the clamping mechanism 516 comprises a feeding wheel, a guide wheel and a second servo motor, the second servo motor is used for driving the feeding wheel, the guide wheel is used for guiding the color material belt 514 onto the material loading platform 54, specifically, in order to effectively control the trend of the color material belt, the feeding wheel and the guide wheel are arranged in pairs, so as to control the pigment belt between the feeding wheel and the guide wheel, the second servo motor is controlled by a program instruction, a predetermined length of the color ribbon 514 may be fed onto the loading table 54, and the color ribbon 514 may be cut into a desired length or size by the cutting cylinder 52.

As a supplement to this embodiment, the color 3D printer is further provided with a control system, which is arranged on the color 3D printer in the form of an industrial personal computer. The control system is used for receiving data from an upper computer, such as three-dimensional model slice data of a product to be printed; and the control system converts the three-dimensional model slice data into corresponding action instructions and sends the action instructions to the color 3D printer, so that the printing of a product to be printed is realized.

Preferably, the control system is further connected with a display, and the display is used for displaying the completion condition of various action instructions sent by the control system.

The operation process of the color 3D printer is as follows:

1) the upper computer transmits the three-dimensional model slice data to the control system;

2) the control system issues an instruction for the print head to travel to a starting position, the print head being actuated to a print starting position;

3) the storage bin provided with 8 charging trays with different colors switches the color required by current printing to the position corresponding to the loading platform according to the instruction of the control system;

4) the clamping mechanism is driven by a servo motor II to convey pigment with a specified length to the material carrying platform under a corresponding instruction;

5) when the control system receives a signal that the clamping mechanism is conveyed in place, a cutting instruction is sent out, the printing cylinder compresses the color belt conveyed to the material loading platform, and the cutting cylinder cuts the color belt into color blocks which can be used for printing;

6) under the pressure action of the printing cylinder, the color block enters an adhesive pool arranged on the material loading platform, so that an adhesive is attached to one end face of the color block;

7) starting a negative pressure system on a printing cylinder, enabling the color material block to be adsorbed to a printing position from a binder pool by the printing cylinder, pressing the color material block to a corresponding position of a printing platform by the printing cylinder, sending a printing completion signal to a control system, and enabling the printing cylinder to return to a material taking position from the printing position;

8) at this time, the control program returns to the step 2) again to start the printing of the next color block until the printing of the whole product is completed.

The above embodiments are only two typical cases of the present invention, and do not limit the technical solution of the present invention, and the reasonable inference and extension obtained according to the technical solution of the present invention without invasive labor are all within the scope of the technical solution of the present invention.