阅读说明：本技术 一种打印机及打印控制方法 (Printer and printing control method ) 是由 龙梅 谈郭健 于 2019-09-23 设计创作，主要内容包括：本发明提出的一种打印机及打印控制方法,打印机包括打印喷头和打印平台,打印平台水平转动安装,打印喷头直线滑动安装在平行于打印平台的安装面上,打印喷头在安装面上的滑动轨迹在打印平台所在平面的投影与打印平台转动轨迹所在圆的半径重合。本发明通过打印平台转动和打印喷头滑动,可实现打印喷头在打印平台上打印位置的任意调整。本发明提出的打印控制方法中,通过坐标点提取具象并精确了打印路径,并根据相邻坐标点的位置关系将打印路径拆解为打印平台的转动轨迹和打印喷头的移动轨迹。如此,本发明中,实现了对打印路径的精确拆分,实现了通过打印平台和打印喷头的同步运动根据打印轨迹对单层模型进行逐一打印,保证了打印精度。(The printer comprises a printing spray head and a printing platform, wherein the printing platform is horizontally and rotatably arranged, the printing spray head is linearly and slidably arranged on an installation surface parallel to the printing platform, and the projection of the sliding track of the printing spray head on the installation surface on the plane of the printing platform is superposed with the radius of the circle of the rotating track of the printing platform. According to the invention, the printing position of the printing nozzle on the printing platform can be adjusted at will by rotating the printing platform and sliding the printing nozzle. According to the printing control method provided by the invention, the image is extracted through the coordinate points, the printing path is accurate, and the printing path is disassembled into the rotating track of the printing platform and the moving track of the printing nozzle according to the position relation of the adjacent coordinate points. Therefore, the printing path is accurately split, the single-layer models are printed one by one according to the printing track through the synchronous motion of the printing platform and the printing nozzle, and the printing precision is ensured.)

1. The printer is characterized by comprising a printing nozzle (1) and a printing platform (2), wherein the printing platform (2) is horizontally and rotatably installed, the printing nozzle (1) is linearly and slidably installed on an installation surface parallel to the printing platform (2), and the projection of the sliding track of the printing nozzle (1) on the installation surface on the plane where the printing platform (2) is located coincides with the radius of the circle where the rotating track of the printing platform (2) is located.

2. A printer according to claim 1, comprising a plurality of print heads (1).

3. The printer according to claim 2, wherein a plurality of printing heads (1) are mounted on the same mounting surface, and sliding tracks of the plurality of printing heads (1) are different two by two.

4. Printer according to claim 1 or 2 or 3 wherein the sliding trajectory of the plurality of printing heads (1) is distributed uniformly axially along the circle on which the rotation trajectory of the printing platform (2) lies.

5. A printing control method characterized by using the printer according to claim 1, the method comprising the steps of:

s1, obtaining a printing model, carrying out layered cutting on the printing model, and obtaining single-layer models which are sequentially arranged from low to high;

s2, selecting a single-layer model to be printed for image analysis, and drawing a printing path of the printing nozzle (1);

s3, taking the center point of the rotating shaft of the printing platform (2) as an original point, and disassembling the printing path into a coordinate point set;

s4, sequentially extracting an angle value and a distance value between every two adjacent coordinate points on the printing path;

s5, generating a rotation control track of the printing platform (2) according to the sequentially acquired angle values, and acquiring a movement control track of the printing nozzle (1) according to the sequentially acquired distance values;

and S6, starting the printer, rotating the printing platform (2) according to the rotation control track, and controlling the spray head to work according to the movement control track.

6. The print control method according to claim 5, wherein the low-to-high single layer models are sequentially numbered in step S1.

7. The print control method according to claim 6, wherein step S5 is specifically: obtaining a rotation control track and a movement control track corresponding to each single-layer model, wherein the step S6 specifically comprises: and starting the printer, determining the current layered model to be printed, acquiring a rotation control track and a movement control track corresponding to the layered model to be printed according to the serial numbers, and controlling the printer to work according to the rotation control track and the movement control track.

8. The print control method according to any one of claims 5 to 7, wherein the rotation control locus and the movement control locus are executed at a uniform speed during printing.

Technical Field

The invention relates to the technical field of 3D printing, in particular to a printer.

Background

The 3D printer can print and manufacture articles in any shapes, is rapidly developed in recent years, and is applied to the fields of mold manufacturing, industrial sample design, individual product customization, gift manufacturing, single-piece and small-batch metal part printing and manufacturing, mechanical manufacturing, aerospace, film and television props, cartoon dolls, cultural relic replication, digital statues, jewelry, buildings and the like. Scientists have also begun to use 3D printers to create simple living tissues such as dentures, hip joints, bones, prosthetics, embryonic stem cells, skin, muscle and blood vessel fragments, and in the future will create large organs of the body that are complex, such as the kidneys, liver and even the heart. With the continuous maturity and perfection of the technology, the application field of the technology is continuously expanded.

However, the existing 3D printing method is stiff in process, complex in operation, high in cost and not beneficial to popularization of 3D printing.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a printer.

The printer comprises a printing nozzle and a printing platform, wherein the printing platform is horizontally and rotatably arranged, the printing nozzle is linearly and slidably arranged on an installation surface parallel to the printing platform, and the projection of the sliding track of the printing nozzle on the installation surface on the plane of the printing platform is superposed with the radius of the circle of the rotating track of the printing platform.

Preferably, a plurality of print heads is included.

Preferably, the plurality of printing nozzles are mounted on the same mounting surface, and the sliding tracks of the plurality of printing nozzles are different pairwise.

Preferably, the sliding tracks of the plurality of printing nozzles are uniformly distributed along the axial direction of the circle on which the rotating track of the printing platform is located.

A print control method, comprising the steps of:

s1, obtaining a printing model, carrying out layered cutting on the printing model, and obtaining single-layer models which are sequentially arranged from low to high;

s2, selecting a single-layer model to be printed for image analysis, and drawing a printing path of a printing nozzle;

s3, taking the center point of the rotating shaft of the printing platform as an original point, and disassembling the printing path into a coordinate point set;

s4, sequentially extracting an angle value and a distance value between every two adjacent coordinate points on the printing path;

s5, generating a rotation control track of the printing platform according to the sequentially acquired angle values, and acquiring a movement control track of the printing nozzle according to the sequentially acquired distance values;

and S6, starting the printer, controlling the printing platform to rotate according to the rotation control track, and controlling the spray head to work according to the movement control track.

Preferably, in step S1, the single-layer models from low to high are numbered sequentially.

Preferably, step S5 specifically includes: obtaining a rotation control track and a movement control track corresponding to each single-layer model, wherein the step S6 specifically comprises: and starting the printer, determining the current layered model to be printed, acquiring a rotation control track and a movement control track corresponding to the layered model to be printed according to the serial numbers, and controlling the printer to work according to the rotation control track and the movement control track.

Preferably, the rotation control trajectory and the movement control trajectory are executed at a uniform speed during printing.

According to the printer provided by the invention, the printing position of the printing nozzle on the printing platform can be randomly adjusted by rotating the printing platform and sliding the printing nozzle. In addition, the adjustment of the printing position is converted into the rotation of the printing platform and the sliding of the printing nozzle, so that the movement of the printing nozzle is simplified, and the printing error rate is reduced.

According to the printing control method provided by the invention, the image is extracted through the coordinate points, the printing path is accurate, and the printing path is disassembled into the rotating track of the printing platform and the moving track of the printing nozzle according to the position relation of the adjacent coordinate points. Therefore, the printing path is accurately split, the single-layer models are printed one by one according to the printing track through the synchronous motion of the printing platform and the printing nozzle, and the printing precision is ensured.

Drawings

FIG. 1 is a schematic diagram of a printer according to the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a flowchart of a printing control method according to the present invention.

Detailed Description

Referring to fig. 1, the printer provided by the invention comprises a printing nozzle 1 and a printing platform 2, wherein the printing platform 2 is horizontally and rotatably installed, the printing nozzle 1 is linearly and slidably installed on an installation surface parallel to the printing platform 2, and the projection of the sliding track of the printing nozzle 1 on the installation surface on the plane where the printing platform 2 is located is coincident with the radius of the circle where the rotating track of the printing platform 2 is located. Therefore, the printing position of the printing nozzle 1 on the printing platform 2 can be adjusted freely by rotating the printing platform 2 and sliding the printing nozzle 1. In addition, in the embodiment, the adjustment of the printing position is converted into the rotation of the printing platform 2 and the sliding of the printing nozzle 1, so that the movement of the printing nozzle 1 is simplified, and the printing error rate is reduced.

In the present embodiment, a plurality of print heads 1 are provided. Firstly, the printing efficiency can be improved by synchronously printing a plurality of printing nozzles 1; secondly, through a plurality of settings of printing shower nozzle 1, can satisfy the partial shipment requirement of the multiple china ink material of colored printing, prevent that different colours from causing the colour interference through same 1 output of printing shower nozzle, the influence from printing the quality.

In this embodiment, the plurality of printing heads 1 are mounted on the same mounting surface, and the sliding tracks of the plurality of printing heads 1 are different in pairs. Namely, each printing nozzle 1 corresponds to the radius of the circle where the rotating track of one printing platform 2 is located, so that the printing nozzles 1 are prevented from interfering with each other in the sliding process. Specifically, in the present embodiment, the sliding tracks of the plurality of printing heads 1 are uniformly distributed along the axial direction of the circle on which the rotation track of the printing platform 2 is located.

The invention also provides a printing control method adopting the printer, which comprises the following steps:

and S1, acquiring the printing model, and carrying out layered cutting on the printing model to acquire the single-layer models which are sequentially arranged from low to high.

And S2, selecting a single-layer model to be printed for image analysis, and drawing a printing path of the printing nozzle 1.

And S3, taking the center point of the rotating shaft of the printing platform 2 as the origin, and disassembling the printing path into a coordinate point set. And S4, sequentially extracting the angle value and the distance value between every two adjacent coordinate points on the printing path.

And S5, generating a rotation control track of the printing platform 2 according to the sequentially acquired angle values, and acquiring a movement control track of the printing nozzle 1 according to the sequentially acquired distance values. And S6, starting the printer, rotating the printing platform 2 according to the rotation control track, and controlling the spray head to work according to the movement control track.

In the embodiment, the image is extracted through the coordinate points, the printing path is accurate, and the printing path is disassembled into the rotation track of the printing platform 2 and the moving track of the printing nozzle 1 according to the position relation of the adjacent coordinate points. Therefore, in the embodiment, the accurate splitting of the printing path is realized, the single-layer model is printed one by one according to the printing track through the synchronous motion of the printing platform 2 and the printing nozzle 1, and the printing precision is ensured.

Specifically, in step S2-3 of the further embodiment of the present invention, one printing path is drawn for each printing nozzle 1 according to the difference in color, and the printing points on each printing path are disassembled. In step S5 of this embodiment, the printing platform 2 and the printing heads 1 are controlled to execute the printing paths of the printing heads 1 one by one according to the angle values and the distance values, so that the movement of the printing platform 2 interferes with each other due to simultaneous printing by a plurality of printing heads 1.

In a further embodiment of the above method, in step S1, the single-layer models from low to high are numbered sequentially, so that the single-layer models are printed one by one according to the numbers to avoid loss. Step S5 of the present embodiment is specifically: obtaining a rotation control track and a movement control track corresponding to each single-layer model, wherein the step S6 specifically comprises: and starting the printer, determining the current layered model to be printed, acquiring a rotation control track and a movement control track corresponding to the layered model to be printed according to the serial numbers, and controlling the printer to work according to the rotation control track and the movement control track.

In a further embodiment of the printing control method provided by the invention, the rotation control track and the movement control track are executed at a uniform speed in the printing process so as to ensure the synchronous movement of the printing platform 2 and the printing spray head 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.