阅读说明：本技术 一种三维打印机用分路径打印方法 (Path-division printing method for three-dimensional printer ) 是由 龙梅 谈郭健 于 2019-09-30 设计创作，主要内容包括：本发明提出的一种三维打印机用分路径打印方法,包括以下步骤：S4、在预设的平面垂直坐标系中对打印层建模,获取各打印点坐标；S5、将各打印点根据坐标位置分类,每一个类集中的打印点的第一坐标值均相同；S6、选取一个类集作为当前执行对象,并选取当前执行对象对应的第一坐标值所定义的直线作为轨迹线；S7、将打印喷头相对于打印平台移动到轨迹线上,然后驱动打印喷头沿着轨迹线移动对执行对象中的各打印点进行打印。本发明中,通过类集归纳,将打印层的打印工作由面转换为线,使得打印喷头的移动轨迹更加简洁明确,有利于提高打印效率和规律,并降低打印喷头的运动磨损。(The invention provides a path printing method for a three-dimensional printer, which comprises the following steps: s4, modeling the printing layer in a preset plane vertical coordinate system to obtain the coordinate of each printing point; s5, classifying the printing points according to the coordinate positions, wherein the first coordinate values of the printing points in each class set are the same; s6, selecting a class set as a current execution object, and selecting a straight line defined by a first coordinate value corresponding to the current execution object as a trajectory line; and S7, moving the printing spray head to the trajectory line relative to the printing platform, and then driving the printing spray head to move along the trajectory line to print each printing point in the execution object. According to the invention, through class set induction, the printing work of the printing layer is converted from surface to line, so that the moving track of the printing nozzle is simpler and more clear, the printing efficiency and the printing rule are favorably improved, and the motion abrasion of the printing nozzle is reduced.)

1. A path printing method for a three-dimensional printer is characterized by comprising the following steps:

s1, setting a printer, wherein the printing nozzle is arranged above the printing platform, and the moving track of the printing nozzle is parallel to the plane of the printing platform and covers the printing platform;

s2, obtaining a printing model, and dividing the printing model into a plurality of division layers from bottom to top;

s3, sequentially acquiring each divided layer as a printing layer;

s4, modeling the printing layer in a preset plane vertical coordinate system to obtain the coordinate of each printing point;

s5, classifying the printing points according to the coordinate positions, wherein the first coordinate values of the printing points in each class set are the same;

s6, selecting a class set as a current execution object, and selecting a straight line defined by a first coordinate value corresponding to the current execution object as a trajectory line;

s7, moving the printing spray head to a trajectory line relative to the printing platform, and then driving the printing spray head to move along the trajectory line to print each printing point in the execution object;

s8, repeating the steps S6-S7 to finish the printing of the printing layer;

and S9, repeating the steps S3-S8, and finishing printing the printing model.

2. The method for printing the branch path of the three-dimensional printer according to claim 1, wherein the sets of classes are further sorted according to the corresponding first coordinate values in step S5, and the currently executing object is selected according to the order of the corresponding first coordinate values in step S6.

3. The path-dividing printing method for the three-dimensional printer according to claim 2, wherein in step S5, the printing points in each category of sets are arranged in order according to the second coordinate value; in step S7, each print dot is printed along the trajectory line according to the arrangement order.

4. The method for path-splitting printing of a three-dimensional printer according to claim 1, wherein in step S7, the print head is moved to the trajectory line relative to the print platform, and then the print head is driven to move at a constant speed along the trajectory line to print each print dot in the execution object.

5. The method for the split-path printing of the three-dimensional printer according to claim 1, wherein in step S1, the printing platform is fixedly installed and the printing head is movably installed.

6. The method for the split path printing of the three-dimensional printer according to claim 5, wherein the print head is driven by a first cylinder and a second cylinder, the first cylinder is fixedly installed above the print platform, the second cylinder is installed on the output shaft of the first cylinder, the print head is installed on the output shaft of the second cylinder, the first cylinder is used for driving the second cylinder to reciprocate linearly, and the second cylinder is used for driving the print head to reciprocate linearly in a direction perpendicular to the output shaft of the first cylinder.

7. The method for the split-path printing of the three-dimensional printer according to claim 6, wherein the extending direction of the output shaft of the first cylinder is set as a first coordinate, and the extending direction of the output shaft of the second cylinder is set as a second coordinate.

8. The method for path-splitting printing of a three-dimensional printer according to claim 1, wherein in step S1, the print platform and the print head are both mounted in a linear motion, and the motion path of the print platform and the motion path of the print head are perpendicular to each other.

Technical Field

The invention relates to the technical field of printing, in particular to a path printing method for a three-dimensional printer.

Background

Three-dimensional (3D) printing may be an additive printing process for manufacturing three-dimensional solid parts from digital models. 3D printing is commonly used for rapid product formation, mold generation, and master generation. 3D printing techniques are considered additive processes because they involve the application of successive layers of material.

At present, when the 3D printing is applied to printing of products with high precision requirements such as pottery clay, artware and the like, the printing precision is difficult to ensure, so that the application range of the 3D printing is limited.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a path printing method for a three-dimensional printer.

The invention provides a path printing method for a three-dimensional printer, which comprises the following steps:

s1, setting a printer, wherein the printing nozzle is arranged above the printing platform, and the moving track of the printing nozzle is parallel to the plane of the printing platform and covers the printing platform;

s2, obtaining a printing model, and dividing the printing model into a plurality of division layers from bottom to top;

s3, sequentially acquiring each divided layer as a printing layer;

s4, modeling the printing layer in a preset plane vertical coordinate system to obtain the coordinate of each printing point;

s5, classifying the printing points according to the coordinate positions, wherein the first coordinate values of the printing points in each class set are the same;

s6, selecting a class set as a current execution object, and selecting a straight line defined by a first coordinate value corresponding to the current execution object as a trajectory line;

s7, moving the printing spray head to a trajectory line relative to the printing platform, and then driving the printing spray head to move along the trajectory line to print each printing point in the execution object;

s8, repeating the steps S6-S7 to finish the printing of the printing layer;

and S9, repeating the steps S3-S8, and finishing printing the printing model.

Preferably, in step S5, the various sets are further sorted according to the corresponding first coordinate values, and in step S6, the currently executed object is selected according to the order of the corresponding first coordinate values.

Preferably, in step S5, the print points in each category of sets are sequentially arranged according to the second coordinate value; in step S7, each print dot is printed along the trajectory line according to the arrangement order.

Preferably, in step S7, the print head is moved to the trajectory line relative to the print platform, and then the print head is driven to move at a constant speed along the trajectory line to print each print dot in the execution object.

Preferably, in step S1, the print platform is fixedly installed and the print head is movably installed.

Preferably, the printing nozzle is driven by a first cylinder and a second cylinder, the first cylinder is fixedly mounted above the printing platform, the second cylinder is mounted on an output shaft of the first cylinder, the printing nozzle is mounted on an output shaft of the second cylinder, the first cylinder is used for driving the second cylinder to do linear reciprocating motion, and the second cylinder is used for driving the printing nozzle to do linear reciprocating motion in a direction perpendicular to the output shaft of the first cylinder.

Preferably, the extending direction of the output shaft of the first cylinder is taken as a first coordinate, and the extending direction of the output shaft of the second cylinder is taken as a second coordinate.

Preferably, in step S1, the print platform and the print head are both mounted in a linear motion, and the motion track of the print platform and the motion track of the print head are perpendicular to each other.

According to the path-division printing method for the three-dimensional printer, the layered printing is realized through the layered cutting of the printing model, so that the reproduction of the printing model is realized through the layer accumulation. Therefore, in the invention, the three-dimensional printing is converted into the planar printing through layer cutting, and the printing difficulty is reduced. According to the invention, the plane printing is conveniently converted into the printing point printing by extracting the printing points, and each printing point is imaged by coordinate modeling, so that the printing precision is improved.

According to the invention, through class set induction, the printing work of the printing layer is converted from surface to line, so that the moving track of the printing nozzle is simpler and more clear, the printing efficiency and the printing rule are favorably improved, and the motion abrasion of the printing nozzle is reduced.

Drawings

Fig. 1 is a flowchart of a method for printing by paths for a three-dimensional printer according to the present invention.

Detailed Description

Referring to fig. 1, the method for printing by paths for a three-dimensional printer according to the present invention includes the following steps:

s1, setting a printer, wherein the printing nozzle is arranged above the printing platform, and the moving track of the printing nozzle is parallel to the plane of the printing platform and covers the printing platform, so that the printing of any point of the printing nozzle on the printing platform is realized through the relative movement of the printing nozzle and the printing platform.

And S2, acquiring the printing model, and dividing the printing model into a plurality of divided layers from bottom to top.

S3, acquiring each divided layer as a printing layer. Specifically, in the present embodiment, layered printing is realized by layered cutting of the print model, so that the print model is reproduced by layer stacking. So, among this embodiment, through the layer cutting, realized printing the conversion of solid into the plane and printed, reduced the printing degree of difficulty.

And S4, modeling the printing layer in a preset plane vertical coordinate system, and acquiring the coordinates of each printing point. Therefore, the plane printing is conveniently converted into the printing point printing, and each printing point is imaged through coordinate modeling, so that the printing precision is improved.

And S5, classifying the printing points according to the coordinate positions, wherein the first coordinate values of the printing points in each class set are the same. So, guaranteed that the coordinate point that each kind set was accomodate all on same straight line.

S6, selecting a class set as the current execution object, and selecting the straight line defined by the first coordinate value corresponding to the current execution object as the trajectory line.

And S7, moving the printing spray head to the trajectory line relative to the printing platform, and then driving the printing spray head to move along the trajectory line to print each printing point in the execution object.

So, in this embodiment, conclude through the class set, the print job that will print the layer is converted into the line by the face for the removal orbit of printing the shower nozzle is succinct more clear and definite, is favorable to improving printing efficiency and law, and reduces the motion wearing and tearing of printing the shower nozzle.

S8, repeating the steps S6-S7 to finish the printing of the printing layer;

and S9, repeating the steps S3-S8, and finishing printing the printing model.

In a further embodiment of the present invention, in step S5, the various sets are further sorted according to the corresponding first coordinate values, and in step S6, the current execution object is selected according to the order of the corresponding first coordinate values. So for print the shower nozzle and remove when switching the class collection in proper order, avoided printing the shower nozzle and printing in-process circulation reciprocating motion, realize printing the unidirectional motion of shower nozzle, further simplified the motion degree of difficulty of printing the shower nozzle, improved printing efficiency. Similarly, further, in step S5, the print points in each category of sets are arranged in order according to the second coordinate value; in step S7, each print dot is printed along the trajectory line according to the arrangement order.

In a further embodiment of the present invention, in step S1, the print platform is fixedly installed and the print head is movably installed. The flexibility of the movement of the printing nozzle is improved, and the influence on the printing of a finished product caused by the movement of the printing platform is avoided.

In this embodiment, the printing nozzle is driven by a first cylinder and a second cylinder, the first cylinder is fixedly mounted above the printing platform, the second cylinder is mounted on an output shaft of the first cylinder, the printing nozzle is mounted on an output shaft of the second cylinder, the first cylinder is used for driving the second cylinder to perform linear reciprocating motion, and the second cylinder is used for driving the printing nozzle to perform linear reciprocating motion in a direction perpendicular to the output shaft of the first cylinder. Therefore, the printing position of the printing nozzle on the horizontal plane can be adjusted at will through the work of the first air cylinder and the second air cylinder.

Specifically, in the present embodiment, the extending direction of the first cylinder output shaft is taken as a first coordinate, and the extending direction of the second cylinder output shaft is taken as a second coordinate. Therefore, the first air cylinder carries the second air cylinder and the printing nozzle to intermittently move, and the second air cylinder carries the printing nozzle to continuously and stably move after the first coordinate value is determined. The second cylinder bears less load, which is beneficial to improving the motion stability and reducing the energy consumption.

In step S7, the print head is moved to the trajectory line relative to the print platform, and then the print head is driven to move at a constant speed along the trajectory line to print each print point in the execution object, so as to ensure the printing effect.

In a further embodiment of the present invention, in step S1, the print head and the print platform are both mounted in a linear motion manner, and the motion track of the print head and the motion track of the print platform are perpendicular to each other, so that the print head and the print platform share the motion direction, and the print head and the print platform both move in one direction, thereby further improving the motion stability of the print head and the print platform.

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.