阅读说明：本技术 一种光固化3d打印方法及打印系统 (Photocuring 3D printing method and printing system ) 是由 齐伟 陈宏刚 陈立昌 于 2020-04-03 设计创作，主要内容包括：一种光固化3D打印方法,包括以下步骤：制备3D打印原料,并将熔融状态的3D打印原料输送至3D打印头；建立待3D打印物体的三维模型；对待3D打印物体进行分层处理；根据待3D打印物体每层截面的轮廓信息确定激光器的扫描轨迹及相应的固化深度；根据固化深度确定激光频率,并依据激光频率得到激光扫描器的电脉冲扫描信号数据；打印头喷出3D打印原料进行3D打印操作；调整各光源模块的照射范围,并通过照射使打印层固化；当每层打印完成后,控制打印工作台下降一个打印层的距离,实现逐层光固化3D打印操作；本发明还提出了一种光固化3D打印系统。本发明优化了光固化3D打印方法,改善了光固化3D打印系统,使3D打印操作更加简单,方便进行控制,省时省力。(A photocuring 3D printing method comprises the following steps: preparing a 3D printing raw material, and conveying the 3D printing raw material in a molten state to a 3D printing head; establishing a three-dimensional model of an object to be 3D printed; carrying out layering processing on the object to be 3D printed; determining a scanning track and a corresponding curing depth of a laser according to the profile information of each layer of section of the object to be 3D printed; determining laser frequency according to the curing depth, and obtaining electric pulse scanning signal data of a laser scanner according to the laser frequency; the printing head ejects 3D printing raw materials to perform 3D printing operation; adjusting the irradiation range of each light source module, and curing the printing layer through irradiation; after each layer is printed, controlling the printing workbench to descend by the distance of one printing layer, and realizing the photocuring 3D printing operation layer by layer; the invention further provides a photocuring 3D printing system. The invention optimizes the photocuring 3D printing method, improves the photocuring 3D printing system, and ensures that the 3D printing operation is simpler, is convenient to control, and is time-saving and labor-saving.)

1. A photocuring 3D printing method is characterized by comprising the following steps:

s1, accessing the 3D printer, and identifying the printing technology type corresponding to the 3D printer and the specific model of the 3D printer;

s2, generating a design printing mode corresponding to the 3D printer according to the identified printing technology type and the specific model;

s3, melting and mixing the raw materials and the binder to prepare a 3D printing raw material, and conveying the 3D printing raw material in a molten state to a 3D printing head;

s4, acquiring information of the object to be 3D printed and establishing a three-dimensional model of the object to be 3D printed;

s5, according to the three-dimensional model data in the S2, layering the 3D printing object to be printed to obtain the outline information of each layer of section;

s6, determining the scanning track and the corresponding curing depth of the laser according to the profile information of each layer of section of the object to be 3D printed;

s7, determining laser frequency according to the curing depth, and obtaining electric pulse scanning signal data of the laser scanner according to the laser frequency;

s8, ejecting 3D printing raw materials by a printing head to perform 3D printing operation;

s9, controlling the plurality of light source modules to move in the horizontal axial direction, adjusting the irradiation range of each light source module, and curing the printing layer through irradiation;

and S10, after each layer is printed, controlling the printing workbench to descend by the distance of one printing layer, and realizing the layer-by-layer photocuring 3D printing operation.

2. The photocuring 3D printing method according to claim 1, wherein in S1, the printing technology type is identified by acquiring characteristic parameters of the 3D printer or receiving input data of a user.

3. The photocuring 3D printing method according to claim 1, wherein in S1, the specific model of the 3D printer is identified by acquiring characteristic parameters of the printer or receiving input data of a user.

4. The photocuring 3D printing method of claim 1, further comprising, at S5, the steps of:

and editing the three-dimensional model, and generating a printing file according to the edited three-dimensional model.

5. The photocuring 3D printing method of claim 1, further comprising, at S5, the steps of:

judging whether a supporting structure is added according to the user requirement; if the support structure is added, adding the support structure according to the edited three-dimensional model, and generating a printing file according to the edited three-dimensional model and the support structure; and if the support structure is not added, generating a printing file according to the edited three-dimensional model.

6. The photocuring 3D printing method of claim 1, wherein the 3D printer status is monitored in real time during 3D printing.

7. The photocuring 3D printing method according to claim 1, wherein before photocuring 3D printing, whether the 3D printer state meets the printing condition needs to be detected;

if the 3D printer state meets the printing condition, performing 3D printing operation; otherwise, continuing to detect until the 3D printer state meets the printing condition.

8. The photocuring 3D printing method of any one of claims 1-7 further provides a photocuring 3D printing system comprising a central processing unit, a communication module, an analysis module, a feed control module, a first position control module, a printing table height control module, a second position control module, and a photocuring control module;

the central processing unit is in communication connection with the communication module, the analysis module, the feeding control module, the first position control module, the printing table height control module, the second position control module and the photocuring control module and is used for processing related information and receiving and sending instructions;

the communication module is used for realizing the bidirectional transmission of information;

the analysis module is used for analyzing the 3D object to be printed, generating a three-dimensional model and analyzing and processing other data;

the feeding control module is used for controlling the speed of the 3D printing raw material entering the printing head;

the first position control module is used for controlling the position of the printing head;

the printing table height control module is used for controlling the height of the printing table to realize layer-by-layer printing;

the second position control module is used for controlling the position of the light source module;

and the photocuring control module is used for controlling the laser frequency of the light source module.

Technical Field

The invention relates to the technical field of 3D printing, in particular to a photocuring 3D printing method and a photocuring 3D printing system.

Background

The photocuring technology is an energy-saving, clean and environment-friendly technology, has energy consumption only one tenth of that of the traditional mercury lamp, does not contain solvent, has the protection effect on the ecological environment, does not discharge toxic gas and carbon dioxide to the atmosphere, and is known as 'green technology'; the photocuring technology is a photoprocessing technology which polymerizes liquid epoxy acrylic resin at a high speed into a solid state by ultraviolet irradiation with a certain wavelength, and the photocuring reaction is essentially polymerization and crosslinking reaction initiated by light; the photocureable coating is the earliest example of the industrial large-scale successful application of photocureable technology, is also the product with the largest output and sale quantity in the photocureable industry field at present, and has the scale far larger than that of photocureable ink and photocureable adhesive, and epoxy acrylic acid is the main photocureable coating;

the photocuring technology is increasingly important in 3D printing, and the principle is that a polymer monomer and a prepolymer form a photoinitiator (photosensitizer), and polymerization reaction is caused after UV light irradiation to complete curing;

however, the existing photocuring 3D printing method is complex to operate, inconvenient to use, time-consuming and labor-consuming, and difficult to achieve the expected effect, and the corresponding photocuring 3D printing system is inconvenient to control the printing process and needs to be improved.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a photocuring 3D printing method and a photocuring 3D printing system, which optimize the photocuring 3D printing method, improve the photocuring 3D printing system, enable the 3D printing operation to be simpler, facilitate the control and save time and labor.

(II) technical scheme

In order to solve the above problems, the present invention provides a photocuring 3D printing method, including the steps of:

s1, accessing the 3D printer, and identifying the printing technology type corresponding to the 3D printer and the specific model of the 3D printer;

s2, generating a design printing mode corresponding to the 3D printer according to the identified printing technology type and the specific model;

s3, melting and mixing the raw materials and the binder to prepare a 3D printing raw material, and conveying the 3D printing raw material in a molten state to a 3D printing head;

s4, acquiring information of the object to be 3D printed and establishing a three-dimensional model of the object to be 3D printed;

s5, according to the three-dimensional model data in the S2, layering the 3D printing object to be printed to obtain the outline information of each layer of section;

s6, determining the scanning track and the corresponding curing depth of the laser according to the profile information of each layer of section of the object to be 3D printed;

s7, determining laser frequency according to the curing depth, and obtaining electric pulse scanning signal data of the laser scanner according to the laser frequency;

s8, ejecting 3D printing raw materials by a printing head to perform 3D printing operation;

s9, controlling the plurality of light source modules to move in the horizontal axial direction, adjusting the irradiation range of each light source module, and curing the printing layer through irradiation;

and S10, after each layer is printed, controlling the printing workbench to descend by the distance of one printing layer, and realizing the layer-by-layer photocuring 3D printing operation.

Preferably, in S1, the printing technology type is identified by acquiring characteristic parameters of the 3D printer or receiving input data of a user.

Preferably, in S1, the specific model of the 3D printer is identified by acquiring characteristic parameters of the printer or receiving input data from a user.

Preferably, in S5, the method further includes the steps of: and editing the three-dimensional model, and generating a printing file according to the edited three-dimensional model.

Preferably, in S5, the method further includes the steps of: judging whether a supporting structure is added according to the user requirement; if the support structure is added, adding the support structure according to the edited three-dimensional model, and generating a printing file according to the edited three-dimensional model and the support structure; and if the support structure is not added, generating a printing file according to the edited three-dimensional model.

Preferably, the 3D printer status is monitored in real time during the 3D printing process.

Preferably, before photocuring 3D printing, whether the state of the 3D printer meets the printing condition needs to be detected;

if the 3D printer state meets the printing condition, performing 3D printing operation; otherwise, continuing to detect until the 3D printer state meets the printing condition.

The invention also provides a photocuring 3D printing system which comprises a central processing unit, a communication module, an analysis module, a feeding control module, a first position control module, a printing table height control module, a second position control module and a photocuring control module;

the central processing unit is in communication connection with the communication module, the analysis module, the feeding control module, the first position control module, the printing table height control module, the second position control module and the photocuring control module and is used for processing related information and receiving and sending instructions;

the communication module is used for realizing the bidirectional transmission of information;

the analysis module is used for analyzing the 3D object to be printed, generating a three-dimensional model and analyzing and processing other data;

the feeding control module is used for controlling the speed of the 3D printing raw material entering the printing head;

the first position control module is used for controlling the position of the printing head;

the printing table height control module is used for controlling the height of the printing table to realize layer-by-layer printing;

the second position control module is used for controlling the position of the light source module;

and the photocuring control module is used for controlling the laser frequency of the light source module.

The technical scheme of the invention has the following beneficial technical effects:

firstly, accessing a 3D printer, and identifying a printing technology type corresponding to the 3D printer and a specific model of the 3D printer; then generating a design printing mode corresponding to the 3D printer according to the identified printing technology type and the specific model; then melting and mixing the raw materials and the binder to prepare a 3D printing raw material, and conveying the 3D printing raw material in a molten state to a 3D printing head; then obtaining information of the object to be 3D printed and establishing a three-dimensional model of the object to be 3D printed; then, according to the three-dimensional model data, carrying out layering processing on the object to be 3D printed to obtain profile information of each layer of section; then determining the scanning track of the laser and the corresponding curing depth according to the profile information of each layer of section of the object to be 3D printed; then determining laser frequency according to the curing depth, and obtaining electric pulse scanning signal data of the laser scanner according to the laser frequency; then the printing head ejects 3D printing raw materials to perform 3D printing operation, the plurality of light source modules are controlled to move in the horizontal axial direction, the irradiation range of each light source module is adjusted, and the printing layer is solidified through irradiation; after each layer is printed, controlling the printing workbench to descend by the distance of one printing layer, and realizing the photocuring 3D printing operation layer by layer;

the invention optimizes the photocuring 3D printing method, improves the photocuring 3D printing system, and ensures that the 3D printing operation is simpler, is convenient to control, and is time-saving and labor-saving.

Drawings

Fig. 1 is a flowchart of a photocuring 3D printing method and a printing method in a printing system according to the present invention.

Fig. 2 is a schematic diagram of a photocuring 3D printing method and a printing system in the printing system according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-2, the present invention provides a photocuring 3D printing method, including the steps of:

s1, accessing the 3D printer, and identifying the printing technology type corresponding to the 3D printer and the specific model of the 3D printer;

s2, generating a design printing mode corresponding to the 3D printer according to the identified printing technology type and the specific model;

s3, melting and mixing the raw materials and the binder to prepare a 3D printing raw material, and conveying the 3D printing raw material in a molten state to a 3D printing head;

s4, acquiring information of the object to be 3D printed and establishing a three-dimensional model of the object to be 3D printed;

s5, according to the three-dimensional model data in the S2, layering the 3D printing object to be printed to obtain the outline information of each layer of section;

s6, determining the scanning track and the corresponding curing depth of the laser according to the profile information of each layer of section of the object to be 3D printed;

s7, determining laser frequency according to the curing depth, and obtaining electric pulse scanning signal data of the laser scanner according to the laser frequency;

s8, ejecting 3D printing raw materials by a printing head to perform 3D printing operation;

s9, controlling the plurality of light source modules to move in the horizontal axial direction, adjusting the irradiation range of each light source module, and curing the printing layer through irradiation;

and S10, after each layer is printed, controlling the printing workbench to descend by the distance of one printing layer, and realizing the layer-by-layer photocuring 3D printing operation.

In an alternative embodiment, in S1, the printing technology type is identified by acquiring characteristic parameters of the 3D printer or receiving input data from a user.

In an alternative embodiment, in S1, the specific model of the 3D printer is identified by acquiring characteristic parameters of the printer or receiving input data from a user.

In an optional embodiment, in S5, the method further includes the following steps: and editing the three-dimensional model, and generating a printing file according to the edited three-dimensional model.

In an optional embodiment, in S5, the method further includes the following steps: judging whether a supporting structure is added according to the user requirement; if the support structure is added, adding the support structure according to the edited three-dimensional model, and generating a printing file according to the edited three-dimensional model and the support structure; and if the support structure is not added, generating a printing file according to the edited three-dimensional model.

In an alternative embodiment, the 3D printer status is monitored in real time during the 3D printing process.

In an optional embodiment, before the photocuring 3D printing, whether the 3D printer state meets the printing condition needs to be detected; if the 3D printer state meets the printing condition, performing 3D printing operation; otherwise, continuing to detect until the 3D printer state meets the printing condition.

The invention also provides a photocuring 3D printing system which comprises a central processing unit, a communication module, an analysis module, a feeding control module, a first position control module, a printing table height control module, a second position control module and a photocuring control module;

the central processing unit is in communication connection with the communication module, the analysis module, the feeding control module, the first position control module, the printing table height control module, the second position control module and the photocuring control module and is used for processing related information and receiving and sending instructions;

the communication module is used for realizing the bidirectional transmission of information;

the analysis module is used for analyzing the 3D object to be printed, generating a three-dimensional model and analyzing and processing other data;

the feeding control module is used for controlling the speed of the 3D printing raw material entering the printing head;

the first position control module is used for controlling the position of the printing head;

the printing table height control module is used for controlling the height of the printing table to realize layer-by-layer printing;

the second position control module is used for controlling the position of the light source module;

and the photocuring control module is used for controlling the laser frequency of the light source module.

In the invention, a 3D printer is accessed firstly, and the printing technology type corresponding to the 3D printer and the specific model of the 3D printer are identified; then generating a design printing mode corresponding to the 3D printer according to the identified printing technology type and the specific model; then melting and mixing the raw materials and the binder to prepare a 3D printing raw material, and conveying the 3D printing raw material in a molten state to a 3D printing head; then obtaining information of the object to be 3D printed and establishing a three-dimensional model of the object to be 3D printed; then, according to the three-dimensional model data, carrying out layering processing on the object to be 3D printed to obtain profile information of each layer of section; then determining the scanning track of the laser and the corresponding curing depth according to the profile information of each layer of section of the object to be 3D printed; then determining laser frequency according to the curing depth, and obtaining electric pulse scanning signal data of the laser scanner according to the laser frequency; then the printing head ejects 3D printing raw materials to perform 3D printing operation, the plurality of light source modules are controlled to move in the horizontal axial direction, the irradiation range of each light source module is adjusted, and the printing layer is solidified through irradiation; after each layer is printed, controlling the printing workbench to descend by the distance of one printing layer, and realizing the photocuring 3D printing operation layer by layer;

editing the three-dimensional model, and generating a print file according to the edited three-dimensional model; judging whether a support structure is added according to the user requirement, if so, adding the support structure according to the edited three-dimensional model, and generating a printing file according to the edited three-dimensional model and the support structure; if the support structure is not added, generating a printing file according to the edited three-dimensional model; before photocuring 3D printing, whether the state of the 3D printer meets a printing condition needs to be detected, if the state of the 3D printer meets the printing condition, 3D printing operation is carried out, otherwise, detection is continued until the state of the 3D printer meets the printing condition, and the state of the 3D printer can be monitored in real time in the 3D printing process;

the invention optimizes the photocuring 3D printing method, improves the photocuring 3D printing system, and ensures that the 3D printing operation is simpler, is convenient to control, and is time-saving and labor-saving.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.