CN113157222A

CN113157222A - 3D character printing method, device and equipment

Info

Publication number: CN113157222A
Application number: CN202110323947.6A
Authority: CN
Inventors: 叶勤; 罗正璋
Original assignee: Zhongke Microelectronics Technology Shenzhen Co ltd
Current assignee: Zhongke Microelectronics Technology Shenzhen Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-07-23

Abstract

The invention discloses a 3D character printing method, a device and equipment, wherein the method comprises the following steps: acquiring characters to be printed, and generating a three-dimensional photoetching model according to the characters to be printed; slicing the stereo lithography model to generate a model slice file; printing the 3D printing supplies according to the model slice file to generate word walls of the 3D characters; judging whether glue pouring operation is performed or not in the printing process of the character wall of the 3D character; if the glue filling operation is carried out, glue filling is carried out on the character wall of the 3D character, and after the glue filling is finished and the character wall of the 3D character is detected to be printed, the 3D character printing is judged to be finished; and if the glue pouring operation is not carried out and the printing of the character wall of the 3D character is detected to be completed, judging that the 3D character printing is completed. The embodiment of the invention can realize the printing of the character wall of the 3D character, and the glue filling operation is carried out according to the requirement, thereby improving the printing efficiency of the 3D character.

Description

3D character printing method, device and equipment

Technical Field

The invention relates to the technical field of 3D printing, in particular to a 3D character printing method, device and equipment.

Background

The 3D printer, also called three-dimensional printer, is a machine of an accumulative manufacturing technique, i.e. a rapid prototyping technique, which is a machine based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material by using a special wax material, powdered metal or plastic and the like. State of the art three-dimensional printers are used to manufacture products, techniques for building objects by printing layer by layer. The principle of the 3D printer is that data and raw materials are put into the 3D printer, and the machine can build the product layer by layer according to the program.

The 3D printer differs from the traditional printer in that the "ink" used in it is a real raw material, and the form of the stacked thin layers is various, and the media available for printing are various, from a wide range of plastics to metals, ceramics and rubber-like substances. Some printers can also combine different media to make one end of the printed object hard and the other soft.

The existing 3D font method has high manufacturing cost and complex operation.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide a method, an apparatus and a device for printing 3D characters, which aim to solve the technical problems of high production cost and complicated operation of the 3D font method in the prior art.

The technical scheme of the invention is as follows:

A3D character printing method is applied to a 3D printer and comprises the following steps:

acquiring characters to be printed, and generating a three-dimensional photoetching model according to the characters to be printed;

slicing the stereo lithography model to generate a model slice file;

printing the 3D printing supplies according to the model slice file to generate word walls of the 3D characters;

judging whether glue pouring operation is performed or not in the printing process of the character wall of the 3D character;

if the glue filling operation is carried out, glue filling is carried out on the character wall of the 3D character, and after the glue filling is finished and the character wall of the 3D character is detected to be printed, the 3D character printing is judged to be finished;

and if the glue pouring operation is not carried out and the printing of the character wall of the 3D character is detected to be completed, judging that the 3D character printing is completed.

Further, the obtaining the characters to be printed and generating the stereolithography model according to the characters to be printed includes:

acquiring characters to be printed, and generating a vector graphic file according to the characters to be printed;

and converting the vector graphic file to generate a stereolithography model, wherein parameters of the stereolithography model comprise a bevel edge amount and a step.

Further preferably, the slicing the stereolithography model to generate a model slice file includes:

and carrying out slicing operation on the stereo lithography model to generate a model slice file, and storing the model slice file.

adjusting model parameters of the stereolithography model, and generating a model file according to the adjusted model parameters;

and acquiring printing configuration parameters of the 3D printer, and slicing the stereolithography model according to the model file and the printing configuration parameters to generate a model slice file.

Preferably, the printing the 3D printing supplies according to the model slice file to generate a word wall of the 3D text includes:

detecting a printing instruction, and judging whether color changing printing operation is carried out or not according to the model slice file;

if the color changing printing operation is carried out, carrying out color changing printing on the 3D printing consumables to generate a multi-color character wall of the 3D characters;

and if the color changing printing operation is not carried out, carrying out monochrome printing on the 3D printing consumables to generate monochrome character walls of the 3D characters.

Further, the printing the 3D printing supplies according to the model slice file to generate a word wall of the 3D text includes:

detecting a printing instruction, and judging whether to perform double-color printing operation according to the model slice file;

if the two-color printing operation is carried out, carrying out color changing printing on the 3D printing consumables to generate two-color character walls of the 3D characters;

and if the two-color printing operation is not carried out, carrying out single-color printing on the 3D printing consumables to generate single-color character walls of the 3D characters.

Further, glue filling is carried out to the word wall of 3D characters, include:

acquiring glue filling parameters according to the model slice file, and filling glue to the character wall of the 3D character according to the glue filling parameters; the glue filling parameters comprise glue filling amount, glue filling offset and a glue filling path.

Another embodiment of the present invention provides a 3D character printing apparatus, including:

the model generation module is used for acquiring characters to be printed and generating a stereolithography model according to the characters to be printed;

the slicing file generation module is used for carrying out slicing operation on the stereo lithography model to generate a model slicing file;

the 3D character wall printing module is used for printing the 3D printing consumables according to the model slice file to generate the character wall of the 3D characters;

the glue filling judging module is used for judging whether glue filling operation is performed or not in the printing process of the character wall of the 3D character;

the glue pouring module is used for pouring glue on the character wall of the 3D character if glue pouring operation is carried out, and judging that the 3D character printing is finished after the glue pouring is finished and the printing of the character wall of the 3D character is finished;

and the printing judging module is used for not performing glue pouring operation and judging that 3D character printing is finished when detecting that the character wall of the 3D character printing is finished.

Another embodiment of the present invention provides a 3D text printing apparatus, comprising at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of 3D text printing described above.

Another embodiment of the present invention also provides a non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the 3D text printing method described above.

Has the advantages that: the embodiment of the invention can realize the printing of the character wall of the 3D character, and the glue filling operation is carried out according to the requirement, thereby improving the printing efficiency of the 3D character.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a flowchart illustrating a 3D text printing method according to a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of a word wall in a preferred embodiment of a 3D word printing method according to the invention;

FIG. 3 is a schematic illustration of glue filling according to a preferred embodiment of the 3D text printing method of the present invention;

FIG. 4 is a schematic diagram of a first view angle of a 3D printer according to the present invention;

FIG. 5 is a schematic diagram of a second perspective of the 3D printer according to the present invention;

FIG. 6 is a functional block diagram of a 3D text printing apparatus according to a preferred embodiment of the present invention;

fig. 7 is a schematic diagram of a hardware structure of a 3D text printing apparatus according to a preferred embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Embodiments of the present invention will be described below with reference to the accompanying drawings.

An embodiment of the present invention provides a 3D text printing method, which is applied to a 3D printer, please refer to fig. 1, and fig. 1 is a flowchart of a preferred embodiment of the 3D text printing method according to the present invention. As shown in fig. 1, it includes the steps of:

s100, obtaining characters to be printed, and generating a stereolithography model according to the characters to be printed;

s200, carrying out slicing operation on the stereo lithography model to generate a model slice file;

step S300, printing the 3D printing supplies according to the model slice file to generate word walls of the 3D characters;

step S400, judging whether glue pouring operation is performed or not in the printing process of the character wall of the 3D character, if the glue pouring operation is performed, executing step S500, and if the glue pouring operation is not performed, executing step S600;

s500, glue is filled into the character walls of the 3D characters, and after the glue is filled, and the printing of the character walls of the 3D characters is detected to be completed, the 3D characters are judged to be completed;

and step S600, if the printing of the character wall of the 3D character is detected to be finished, judging that the 3D character printing is finished.

In specific implementation, characters to be printed are obtained, a vector graphic file is generated according to the characters to be printed, and the vector graphic file is converted to generate a stereolithography model; generating a model slice file according to the stereolithography model file and the printing configuration parameters, acquiring consumables to be printed, and selecting a printing temperature according to the consumables;

detecting a printing instruction, printing the 3D consumable to be printed according to data in the model slice file to generate a word wall of the 3D character, judging whether glue filling operation is needed or not in the printing process of the word wall, if the glue filling operation is not needed, as shown in fig. 2, the word wall is a font schematic diagram without glue filling, and if the printing of the word wall of the 3D character is detected to be completed, judging that the printing is completed without executing any operation. If glue pouring operation is needed, glue is poured on the character wall of the 3D character; as shown in fig. 3, which is a schematic diagram of the characters after glue filling, the glue filling operation is completed after the bottom of the character wall is detected to be full; and after the glue is cured and the printing of the character wall of the 3D character is detected to be completed, the printing is completed. The character wall printing and the glue filling operation can be carried out simultaneously, but the glue filling operation needs to be carried out after the character wall is printed at a certain height, and the character wall printing can be carried out while the glue filling operation is carried out at the moment.

Further, acquiring characters to be printed, and generating a stereolithography model according to the characters to be printed, including:

and converting the vector graphic file to generate a stereolithography model, wherein parameters of the stereolithography model comprise an oblique edge amount and a step.

In particular, the stereolithography model is based on SVG (Scalable Vector Graphics) files. And converting the 3D large characters to be printed into SVG files, then importing slicing software for processing, and converting the SVG files of the 2D Chinese characters into a 3DSTL model by the slicing software. As shown in fig. 3, the parameters of the stereolithography model include the amount of the bevel and the step 2000. The bevel edge amount is a coordinate from the highest point of the bevel edge 1000 to the vertical distance of the stage, the distance from the coordinate to the initial point position of the slope, and when the bevel edge offset is 0, the height of the bevel edge is not present, and only the height of a straight edge is present. The step is a turning edge generated by the angle change of the character wall bevel edge in the character wall printing process.

Further, slicing the stereo lithography model to generate a model slice file, including:

In specific implementation, an SD card is used as a memory in a 3D printer, and the sliced model file is loaded into the SD card for storage. The sliced model file is written into the SD card through the WIFI module, so that the SD card does not need to be manually plugged and pulled, and the working efficiency is improved.

In specific implementation, parameters such as the height, the size and the offset of the model are adjusted, the printing layer height, the printing width, the printing speed, the platform temperature and the like are set, slicing processing is carried out after the model file and the printing configuration parameters are set through slicing software, and a model slice file is generated and recorded as a Gode file.

Further, printing the 3D printing supplies according to the model slice file to generate a word wall of the 3D characters, comprising:

In specific implementation, as shown in fig. 4 and fig. 5, for the 3D printer according to the embodiment of the present invention, before printing, the machine glass platform 100 needs to be cleaned and arranged, impurities on the glass platform 100 are removed, then a layer of glass platform glue is applied, consumables to be printed are put in, and a printing temperature is selected according to the consumables. 3D text printing consumables are of many kinds, for example: PLA, polylactic acid, ABS, PETG and the like. ABS is a terpolymer of acrylonitrile, butadiene and styrene, A represents acrylonitrile, B represents butadiene and S represents styrene.

Entering an operation interface, selecting a previously sliced model slicing file (GODE file), resetting the printer according to the model slicing file, wherein the resetting meaning is to reset the modules on the printer (reset each motor shaft).

After printing is started, the machine mainboard controls the heating rod module (not shown in the figure) to heat and the hot bed module (not shown in the figure) to heat, the extruder tries to extrude consumables after the printing temperature is reached, whether the consumables are normal or not is detected, and all modules detect that printing of the model is started.

The model is printed according to the model slice file, specifically from the bottom route printing, after every layer of printing, operation interface can feed back, real time monitoring printing state, operation interface show print progress, printing time, print data such as layer height, printing speed, make things convenient for human-computer interaction, handle unusually. When a problem occurs in the printing process, the printing is automatically suspended, and the printing can be directly resumed after the problem is solved.

If multi-color printing is needed, when printing to a certain layer height, the color changing function is started.

In specific implementation, the embodiment of the invention preferably adopts two-color printing, when printing to a certain layer height, the color changing function is started, the implementation scheme is that consumable materials in the first extruder 200 are pumped back, then the tool is started to be switched, at the moment, the first extruder 200 stops working, the second extruder 300 starts working, the consumable materials of the second extruder 300 enter the heating block to perform subsequent printing, the color changing function is realized, the project only supports two-color printing, two extruders are installed at the front end of printing, parameters need to be set on slice software before the two-color printing, the two extruders are provided with consumable materials with different colors, and automatic processing is directly performed in the printing process. Further, the parameters of the extruder are required to be set for double-color printing, and the extrusion amount is corrected, so that great benefits are brought to the printing quality.

Further, carry out the encapsulating to the word wall of 3D characters, include:

In the embodiment of the invention, 3D large characters are mainly printed, a glue filling system is needed, liquid ya keli glue is used as materials, when a printing shell is printed to a certain thickness, the glue filling system 400 is started, a compressor 401 of the glue filling system starts to work, pressure is pressed into a glue barrel 402, a host tool is switched to a second tool, namely a glue filling tool, a glue filling valve is opened, glue flows out, and then glue filling is carried out according to a slicing path.

It should be noted that, a certain order does not necessarily exist between the above steps, and those skilled in the art can understand, according to the description of the embodiments of the present invention, that in different embodiments, the above steps may have different execution orders, that is, may be executed in parallel, may also be executed interchangeably, and the like.

Another embodiment of the present invention provides a 3D character printing apparatus, as shown in fig. 6, the apparatus 1 includes:

the model generation module 11 is used for acquiring characters to be printed and generating a stereolithography model according to the characters to be printed;

a slicing file generation module 12, configured to perform slicing operation on the stereo lithography model to generate a model slicing file;

the 3D character wall printing module 13 is used for printing the 3D printing consumables according to the model slice file to generate the character wall of the 3D characters;

the glue filling judging module 14 is used for judging whether glue filling operation is performed in the printing process of the character wall of the 3D character;

the glue pouring module 15 is used for pouring glue on the character walls of the 3D characters if glue pouring operation is performed, and judging that 3D character printing is completed after the glue pouring is completed and the printing of the character walls of the 3D characters is detected to be completed;

and the printing judging module 16 is used for not performing glue pouring operation and judging that 3D character printing is finished when detecting that the character wall of the 3D character is printed.

The specific implementation is shown in the method embodiment, and is not described herein again.

Another embodiment of the present invention provides a 3D text printing apparatus, as shown in fig. 7, the apparatus 10 including:

one or more processors 110 and a memory 120, where one processor 110 is illustrated in fig. 7, the processor 110 and the memory 120 may be connected by a bus or other means, and where fig. 7 illustrates a bus connection.

Processor 110 is operative to implement various control logic of apparatus 10, which may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a single chip, an ARM (Acorn RISC machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Also, the processor 110 may be any conventional processor, microprocessor, or state machine. Processor 110 may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The memory 120, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions corresponding to the 3D text printing method in the embodiment of the present invention. The processor 110 executes various functional applications and data processing of the device 10, i.e., implements the 3D text printing method in the above-described method embodiments, by executing the nonvolatile software programs, instructions, and units stored in the memory 120.

The memory 120 may include a storage program area and a storage data area, wherein the storage program area may store an application program required for operating the device, at least one function; the storage data area may store data created according to the use of the device 10, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, memory 120 optionally includes memory located remotely from processor 110, which may be connected to device 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

One or more units are stored in the memory 120, which when executed by the one or more processors 110, perform the 3D text printing method in any of the method embodiments described above, e.g. performing the method steps S100 to S600 in fig. 1 described above.

Embodiments of the present invention provide a non-transitory computer-readable storage medium storing computer-executable instructions for execution by one or more processors, for example, to perform method steps S100-S600 in fig. 1 described above.

By way of example, non-volatile storage media can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), electrically erasable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in many forms such as Synchronous RAM (SRAM), dynamic RAM, (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The disclosed memory components or memory of the operating environment described herein are intended to comprise one or more of these and/or any other suitable types of memory.

Another embodiment of the present invention provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a processor, cause the processor to perform the 3D text printing method of the above method embodiment. For example, the method steps S100 to S600 in fig. 1 described above are performed.

The above-described embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the embodiment.

Through the above description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a general hardware platform, and may also be implemented by hardware. Based on such understanding, the above technical solutions essentially or contributing to the related art can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.

Conditional language such as "can," "might," or "may" is generally intended to convey that a particular embodiment can include (yet other embodiments do not include) particular features, elements, and/or operations, among others, unless specifically stated otherwise or otherwise understood within the context as used. Thus, such conditional language is also generally intended to imply that features, elements, and/or operations are in any way required for one or more embodiments or that one or more embodiments must include logic for deciding, with or without input or prompting, whether such features, elements, and/or operations are included or are to be performed in any particular embodiment.

What has been described herein in the specification and drawings includes examples capable of providing a 3D text printing method and apparatus. It will, of course, not be possible to describe every conceivable combination of components and/or methodologies for purposes of describing the various features of the disclosure, but it can be appreciated that many further combinations and permutations of the disclosed features are possible. It is therefore evident that various modifications can be made to the disclosure without departing from the scope or spirit thereof. In addition, or in the alternative, other embodiments of the disclosure may be apparent from consideration of the specification and drawings and from practice of the disclosure as presented herein. It is intended that the examples set forth in this specification and the drawings be considered in all respects as illustrative and not restrictive. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A3D character printing method is applied to a 3D printer, and the method comprises the following steps:

slicing the stereo lithography model to generate a model slice file;

2. The 3D text printing method according to claim 1, wherein the obtaining the text to be printed and generating the stereolithography model from the text to be printed comprises:

3. The 3D text printing method according to claim 1, wherein the slicing the stereolithography model to generate a model slice file comprises:

4. The 3D text printing method according to claim 3, wherein the slicing the stereolithography model to generate a model slice file comprises:

5. The 3D text printing method according to claim 1, wherein the printing the 3D printing supplies according to the model slice file to generate the word wall of the 3D text comprises:

6. The 3D text printing method according to claim 1, wherein the printing the 3D printing supplies according to the model slice file to generate the word wall of the 3D text comprises:

7. The 3D text printing method according to claim 1, wherein the glue filling of the word wall of the 3D text comprises:

8. A 3D text printing apparatus, the apparatus comprising:

9. A 3D text printing apparatus, characterized in that the apparatus comprises at least one processor; and the number of the first and second groups,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of 3D text printing according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the method of 3D text printing according to any one of claims 1-7.