阅读说明：本技术 一种用于清洗3d打印件的清洗仪及清洗方法 (Cleaning instrument and cleaning method for cleaning 3D printed piece ) 是由 桂培炎 李韵 蔡德信 曾威 曲铭扬 于 2020-03-27 设计创作，主要内容包括：本发明公开了一种用于清洗3D打印件的清洗仪及清洗方法,其中清洗仪包括清洗室、若干清洗液仓、洗液循环系统、控制模块和信息交互系统,清洗室内设有清洗装置,各清洗液仓内存放有清洗剂,用于各清洗液仓与清洗室之间的清洗剂循环,信息交互系统用于接收清洗工艺信息。此用于清洗3D打印件的清洗仪及清洗方法,通过信息交互系统接收获取清洗工艺信息,3D打印件放置于清洗室内,根据清洗工艺信息控制中心控制清洗装置和洗液循环系统对3D打印件进行多次清洗,从而能够对3D打印件进行更加准确和高效的清洗,全程不需要人工介入,自动化水平高,此发明用于3D打印技术领域。(The invention discloses a cleaning instrument and a cleaning method for cleaning a 3D printing piece, wherein the cleaning instrument comprises a cleaning chamber, a plurality of cleaning liquid bins, a cleaning liquid circulating system, a control module and an information interaction system, a cleaning device is arranged in the cleaning chamber, cleaning agents are stored in the cleaning liquid bins and used for circulating the cleaning agents between the cleaning liquid bins and the cleaning chamber, and the information interaction system is used for receiving cleaning process information. According to the cleaning instrument and the cleaning method for cleaning the 3D printed piece, the information interaction system is used for receiving and acquiring the cleaning process information, the 3D printed piece is placed in the cleaning chamber, the cleaning device and the washing liquor circulation system are controlled to clean the 3D printed piece for multiple times according to the cleaning process information, so that the 3D printed piece can be cleaned more accurately and efficiently, manual intervention is not needed in the whole process, the automation level is high, and the cleaning instrument and the cleaning method are used in the technical field of 3D printing.)

1. A cleaning instrument for cleaning 3D prints, comprising:

the cleaning chamber is used for placing the 3D printing piece, and a cleaning device is arranged in the cleaning chamber;

a plurality of cleaning liquid bins, wherein cleaning agents are stored in each cleaning liquid bin;

the washing liquid circulating system is used for circulating the washing agent between each washing liquid bin and the washing chamber;

the information interaction system is used for receiving cleaning process information; and

and the control module comprises a control center, and the control center is electrically connected with the cleaning device, the washing liquid circulating system and the information interaction system.

2. A cleaning apparatus for cleaning 3D-prints according to claim 1, characterized in that the information interaction system comprises an identifier for identifying an information storage for storing cleaning process information, which cleaning process information comprises one or more of the following: 3D printing material type, cleaning process version, cleaning power and cleaning time.

3. A cleaning instrument for cleaning 3D prints according to claim 2, characterized in that: the information storage is a two-dimensional code, and the identifier is a code scanning gun.

4. A cleaning instrument for cleaning 3D prints according to claim 1, characterized in that: the cleaning solution storehouse has two, is rough cleaning solution storehouse and fine scrubber respectively, the cleaner concentration in the fine scrubber storehouse is higher than the cleaner concentration in the rough cleaner storehouse.

5. A cleaning instrument for cleaning 3D prints according to claim 1, characterized in that: the cleaning room is internally provided with a flexible net bag, the flexible net bag is arranged in a suspension mode, and the 3D printing piece is placed in the flexible net bag.

6. A cleaning instrument for cleaning 3D prints according to claim 1, characterized in that: the cleaning device comprises one or two of an ultrasonic cleaning module and a pulsator cleaning module.

7. A cleaning method for cleaning a 3D print, comprising:

setting an information interaction system, wherein the information interaction system receives cleaning process information and transmits the information to a control center of the cleaning instrument;

and the cleaning instrument cleans the 3D printing piece according to the cleaning process information.

8. A cleaning method for cleaning 3D-prints according to claim 7, characterized in that the information interaction system comprises an identifier for identifying an information store storing cleaning process information comprising one or more of the following: 3D printing material type, cleaning process version, cleaning power and cleaning time.

9. A cleaning method for cleaning a 3D print according to claim 7, further comprising: and acquiring the surface area or mass data of the 3D printed piece, calculating the loss of the cleaning agent by the cleaning instrument according to the surface area and/or mass data of the 3D printed piece after each cleaning, and reminding an operator to replace the cleaning agent when the cleaning agent does not meet the cleaning requirement.

10. A cleaning method for cleaning a 3D print according to claim 9, characterized in that: detect the quality that prints the liquid printing material of printing 3D printing consumption or detect the quality that 3D printed the piece, learn the quality M that 3D printed the piece, cleaner loss factor is P, cleaner loss factor P is the required cleaner quality of 3D printing of washing unit mass, then the cleaner loss amount is M P.

11. A cleaning method for cleaning a 3D print according to claim 9, characterized in that: model file and the surface area data of 3D printing piece lead-in 3D printer, and the 3D printer is connected to the purger electricity, acquires the surface area S of 3D printer through the 3D printer, and cleaner loss factor is Q, cleaner loss factor Q is the required cleaner quality of 3D printing piece of washing unit surface area, and the molding complexity of 3D printing piece is C, and then the loss of cleaner is S Q C.

12. A cleaning method for cleaning 3D prints according to any one of claims 9 to 11, characterized in that: and (4) counting the actual detergent loss after each cleaning, comparing the estimated detergent loss calculated before cleaning, and adjusting the estimated detergent loss of the next cleaning by combining a three-dimensional model file of the 3D printed piece through a feedback algorithm.

Technical Field

The invention relates to the technical field of 3D printing, in particular to a cleaning instrument and a cleaning method for cleaning a 3D printed piece.

Background

The photocuring printer utilizes a high-resolution ultraviolet light source to project the cross section of a three-dimensional model on a workbench, so that liquid photosensitive resin is cured into a solid state, and a 3D printed product is obtained. Because liquid photosensitive resin can remain on the surface of the solid 3D printing piece after curing and forming, the 3D printing piece needs to be cleaned after 3D printing and forming, and the residual liquid photosensitive resin is dissolved and cleaned. The current cleaning mode is a semi-automatic mode: an operator puts a printed piece into an ultrasonic cleaning machine, uses isopropanol as a solvent to clean for 2 times, the cleaning time is uncertain every time, and the cleaning effect is ensured mainly according to human experience. The above-described cleaning method requires frequent manual intervention and is clearly an inefficient method.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides a cleaning instrument and a cleaning method for cleaning a 3D printed product, which can realize automatic and efficient cleaning of the 3D printed product.

According to an embodiment of a first aspect of the present invention, there is provided a cleaning apparatus for cleaning 3D prints, comprising:

the cleaning chamber is used for placing the 3D printing piece, and a cleaning device is arranged in the cleaning chamber;

a plurality of cleaning liquid bins, wherein cleaning agents are stored in each cleaning liquid bin;

the washing liquid circulating system is used for circulating the washing agent between each washing liquid bin and the washing chamber;

the information interaction system is used for receiving cleaning process information; and

and the control module comprises a control center, and the control center is electrically connected with the cleaning device, the washing liquid circulating system and the information interaction system.

According to the cleaning instrument for cleaning 3D printing pieces, the information interaction system comprises an identifier, the identifier is used for identifying an information storage, the information storage stores cleaning process information, and the cleaning process information comprises one or more of the following information: 3D printing material type, cleaning process version, cleaning power and cleaning time.

According to the cleaning instrument for cleaning 3D printing pieces, the information storage is a two-dimensional code, and the identifier is a code scanning gun.

According to the cleaning instrument for cleaning the 3D printing piece, the number of the cleaning liquid bins is two, namely the coarse cleaning liquid bin and the fine cleaning liquid bin, and the concentration of the cleaning agent in the fine cleaning liquid bin is higher than that in the coarse cleaning liquid bin.

According to the cleaning instrument for cleaning the 3D printing piece, the flexible net bag is arranged in the cleaning chamber in a suspended mode, and the 3D printing piece is placed in the flexible net bag.

According to the cleaning instrument for cleaning the 3D printed matter, the cleaning device comprises one or two of an ultrasonic cleaning module and a pulsator cleaning module.

According to the cleaning instrument for cleaning the 3D printed matter, the control module further comprises a control panel and a display screen, the control center is electrically connected with the control panel and the display screen, cleaning process information can be manually input into the control panel, and the display screen displays the cleaning process information.

The cleaning instrument for cleaning 3D prints according to the embodiment of the first aspect of the invention further comprises a temperature control component.

The cleaning instrument for cleaning the 3D printing piece according to the embodiment of the first aspect of the invention further comprises a liquid adding device.

Has the advantages that: this a wash appearance for rinsing 3D prints piece receives through information interaction system and acquires the washing process information, and 3D prints the piece and places in the washing chamber, washs a lot of according to washing process information control center control belt cleaning device and lotion circulation system to 3D prints the piece, owing to directly acquire the washing process information from information interaction system to can carry out more accurate and efficient washing to 3D prints the piece, whole journey does not need artifical intervention, and the automation level is high.

According to a second aspect of the present invention, there is provided a cleaning method for cleaning a 3D print, comprising:

setting an information interaction system, wherein the information interaction system receives cleaning process information and transmits the information to a control center of the cleaning instrument;

and the cleaning instrument cleans the 3D printing piece according to the cleaning process information.

According to the cleaning method for cleaning 3D printing pieces, the information interaction system comprises an identifier, the identifier is used for identifying an information storage, the information storage stores cleaning process information, and the cleaning process information comprises one or more of the following information: 3D printing material type, cleaning process version, cleaning power and cleaning time.

The cleaning method for cleaning the 3D printing piece according to the embodiment of the second aspect of the invention further comprises the following steps: and acquiring the surface area or mass data of the 3D printed piece, calculating the loss of the cleaning agent by the cleaning instrument according to the surface area and/or mass data of the 3D printed piece after each cleaning, and reminding an operator to replace the cleaning agent when the cleaning agent does not meet the cleaning requirement.

According to the cleaning method for cleaning the 3D printed matter, according to the embodiment of the second aspect of the present invention, the quality of the liquid printing material consumed by printing the 3D printed matter is detected, or the quality of the 3D printed matter is detected, the quality M of the 3D printed matter is obtained, the cleaning agent loss factor is P, the cleaning agent loss factor P is the quality of the cleaning agent required for cleaning the 3D printed matter of unit mass, and the cleaning agent loss amount is M × P.

According to the cleaning method for cleaning the 3D printed matter, the model file and the surface area data of the 3D printed matter are imported into the 3D printer, the cleaning instrument is electrically connected with the 3D printer, the surface area S of the 3D printer is obtained through the 3D printer, the cleaning agent loss factor is Q, the cleaning agent loss factor Q is the cleaning agent quality required for cleaning the 3D printed matter with unit surface area, the modeling complexity of the 3D printed matter is C, and the loss amount of the cleaning agent is S × Q C.

According to the cleaning method for cleaning the 3D printed piece, the actual cleaning agent loss after each cleaning is counted, the estimated cleaning agent loss calculated before cleaning is compared, and the estimated cleaning agent loss of the next cleaning is adjusted through a feedback algorithm by combining with the three-dimensional model file of the 3D printed piece.

Has the advantages that: according to the cleaning method for cleaning the 3D printed piece, the information interaction system is used for receiving and acquiring the cleaning process information, the 3D printed piece is cleaned according to the cleaning process information, and the cleaning process information is directly acquired from the information interaction system, so that the 3D printed piece can be cleaned more accurately and efficiently, manual intervention is not needed, and the automation level is high.

Drawings

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

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

reference numerals: a rough washing liquid bin 10, a fine washing liquid bin 20, a cleaning chamber 30, a washing liquid circulating system 40, a control center 50, an identifier 60, an information storage 70, a cleaning device 80 and a flexible net bag 90.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the embodiment of the invention provides a cleaning instrument for cleaning 3D prints, which comprises a cleaning chamber 30, a plurality of cleaning liquid bins, a cleaning liquid circulation system 40, a control module and an information interaction system.

Wherein, purge chamber 30 is used for placing 3D printing, is equipped with belt cleaning device 80 in the purge chamber 30, and belt cleaning device 80 includes one or two of ultrasonic cleaning module, impeller cleaning module. The ultrasonic cleaning module utilizes the cavitation, acceleration and direct current action of ultrasonic waves in liquid to directly and indirectly act on the liquid and dirt, so that the dirt (such as residual liquid photosensitive resin) on the surface of the 3D printing piece is dispersed, emulsified and stripped to achieve the cleaning purpose. In addition, under the driving of the dial wheel of the impeller cleaning module, the cleaning agent in the cleaning chamber 30 forms a vortex, so that the cleaning effect can be further improved.

Be equipped with flexible string bag 90 in the purge chamber 30, the unsettled setting of flexible string bag 90, 3D prints the piece and places in flexible string bag 90 to make 3D print the piece unsettled, thereby guarantee that the cleaner can follow arbitrary direction and wash 3D print the piece, including the bottom that washs 3D print the piece. And adopt flexible string bag 90, produce when can avoiding 3D to print a piece and transfer and strike, avoid damaging 3D and print a piece, play buffering and guard action.

Cleaning agents are stored in each cleaning liquid bin, and specifically, a plurality of cleaning liquid bins are arranged as required, such as a rough cleaning liquid bin 10 and a fine cleaning liquid bin 20, or the rough cleaning liquid bin 10, a semi-fine cleaning liquid bin and the fine cleaning liquid bin 20. It can be understood that the cleaning effect of the fine cleaning solution bin 20 is better than that of the coarse cleaning solution bin 10, or the cleaning effect of the cleaning solution bin gradually increases from the coarse cleaning solution bin 10, the semi-fine cleaning solution bin to the fine cleaning solution bin 20. The 3D printing piece can be cleaned by the coarse cleaning solution bin 10 to remove most of residual liquid photosensitive resin on the surface, and can be cleaned by the fine cleaning solution bin 20 to remove a small amount of residual resin on the surface of the printing piece as much as possible. The 3D printing material adopts liquid photosensitive resin, so the cleaning agent can be dissolved in the photosensitive resin, and the cleaning agent for cleaning the liquid cabin can be selected from cleaning agents such as isopropanol or alcohol. For example, isopropanol can be used as the cleaning agent in both the rough cleaning solution tank 10 and the fine cleaning solution tank 20, but the concentration of the cleaning agent in the fine cleaning solution tank 20 is higher than that in the rough cleaning solution tank 10.

Lotion circulation system 40 is used for the cleaner circulation between each cleaning solution storehouse and the purge chamber 30, lotion circulation system 40 extracts the cleaner to the purge chamber 30 in from thick cleaning solution storehouse 10 during first washing, after the thick washing finishes, in withdrawing the cleaner to thick cleaning solution storehouse 10 from the purge chamber 30, then wash for the second time, lotion circulation system 40 extracts the cleaner to the purge chamber 30 in from the fine cleaning solution storehouse 20, after the fine washing finishes, in withdrawing the fine cleaning solution storehouse 20 from the purge chamber 30 again with the cleaner, with this coarse washing and the fine washing of realizing 3D printing piece, and avoid the cleaner in thick cleaning solution storehouse 10 and the fine cleaning solution storehouse 20 to obscure, lead to the cleaner concentration reduction in the fine cleaning solution storehouse 20 and influence the cleaning performance. Specifically, the washing liquid circulating system 40 includes a plurality of bidirectional liquid pumps, and liquid inlets and liquid outlets at two ends of each bidirectional liquid pump are respectively communicated with the washing chamber 30 and the corresponding washing liquid bin through pipes, or two unidirectional liquid pumps may be used instead of the bidirectional liquid pumps. The liquid pump can select a peristaltic pump or a diaphragm pump, and the pump can avoid the pollution or corrosion of cleaning agents or residual resin to components in the pump.

And the information interaction system is used for receiving the cleaning process information. The sending end of the cleaning process information can be a cloud server, a 3D printer and the like. When the sending end of the cleaning process information is the cloud server, the user can upload the corresponding cleaning process information of the printed piece to the cloud server, and the cloud server sends the cleaning process information to the cleaning instrument where the printed piece is located, so that remote control over the cleaning instrument is achieved. When the sending end of cleaning process information is the 3D printer, the 3D printer is connected with the cleaning instrument, the connection mode can be electric connection or wireless connection (for example, WIFI, Bluetooth and the like), after the 3D printer is printed, the information (material information and printed size information) of a printed piece can be sent to the cleaning instrument as cleaning process information, and the cleaning instrument carries out corresponding cleaning work on the printed piece according to the cleaning process information.

In this embodiment, the sending end of the cleaning process information is an information storage 70, the information storage 70 stores the cleaning process information, and the information exchange system includes an identifier 60, and the identifier 60 can identify the information storage 70 to receive the cleaning process information from the information storage 70.

The control module comprises a control center 50, the control center 50 is electrically connected with the cleaning device 80, the washing liquid circulating system 40 and the information interaction system, and the control center 50 can be a computer, a PLC or a microcomputer.

The cleaning instrument for cleaning 3D printed parts of the embodiment receives cleaning process information through the information interaction system, acquires the cleaning process information, transmits the information to the control center 50, places the 3D printed parts in the cleaning chamber 30, controls the cleaning device 80 and the lotion circulating system 40 to clean the 3D printed parts for multiple times according to the cleaning process information control center 50, can clean the 3D printed parts more accurately and efficiently, does not need manual intervention in the whole process, and has high automation level.

In this embodiment, the information storage 70 may be separately mounted and fixed or fixed to other components.

Information storage 70 can adopt two-dimensional code or bar code, and information storage 70 adopts the two-dimensional code, and recognizer 60 adopts and sweeps a yard rifle, through sweeping a yard rifle and scanning the two-dimensional code to obtain the information of storing on the two-dimensional code, the two-dimensional code sets up on 3D printed material's packing bottle, and the information that the two-dimensional code stored includes cleaning process information, and cleaning process information can include one or more in the following information: cleaning time, 3D printing material type, cleaning process version, cleaning power, and the like.

The cleaning time is the cleaning time of the 3D printing piece in the cleaning instrument, and specifically is the cleaning time of the cleaning instrument for cleaning the 3D printing piece in the specific cleaning solution cabin aiming at specific printing materials. Thus, the cleaning time may comprise a plurality of times, for example comprising a fine cleaning time, which is the cleaning time of the 3D print in the fine cleaning reservoir, or a coarse cleaning time, which is the cleaning time of the 3D print in the coarse cleaning reservoir, as will be readily appreciated. In addition, the cleaning time can be subdivided according to different cleaning agent types, namely isopropanol rough cleaning time, isopropanol fine cleaning time or alcohol rough cleaning time and alcohol fine cleaning time.

Different printing materials have different dissolving effects in the cleaning agent, in other words, in order to achieve the best cleaning effect for different printing materials, therefore, the cleaning process information may include the type of the 3D printing material, and the control module may obtain the working parameter of the final cleaning instrument according to the specific printing material and the type of the cleaning agent in the cleaning solution tank, where the working parameter may be the cleaning time or the cleaning power.

Because the cleaning process can be adjusted according to needs, the version information of the cleaning process stored on the two-dimensional code is convenient for identifying and distinguishing different cleaning processes.

The cleaning power refers to the working power of the cleaning device 80, such as the power of the ultrasonic cleaning module or the power of the pulsator cleaning module, and it is easy to understand that the power of the ultrasonic cleaning module affects the vibration frequency of the ultrasonic cleaning module, and further affects the cleaning effect of the cleaning instrument, and similarly, the pulsator cleaning module also affects the cleaning effect of the cleaning instrument. The cleaning power can affect the cleaning effect and energy consumption of the cleaning instrument, and different cleaning technologies need to be configured with different cleaning powers. When the information interaction system (or the recognizer) receives the cleaning process information comprising the cleaning power and the cleaning time, the control module can accurately control the working state of the cleaning instrument according to the information, so that the optimal cleaning effect is realized, and the balance of the cleaning effect and the energy consumption is achieved.

If the cleaning instrument does not comprise an information interaction system, a special storage module needs to be formulated in the cleaning instrument for storing various processes, different printing materials, different 3D printing piece sizes, different cleaning agent types and different cleaning devices are known to correspond to different cleaning processes, and waste of storage resources is caused. The information storage device solves the problems, the cleaning process information is directly stored in the information storage device, the information interaction system identifies through the identifier and receives the cleaning process information, and the cleaning process information is convenient and fast to use. In addition, when the cleaning process needs to be adjusted, the two-dimensional code is replaced.

Further, the operating parameters of the control module for controlling the cleaning apparatus may refer to the size or quality of the 3D print. It will be appreciated that different sizes or qualities of the printed matter will require different cleaning times, cleaning powers, and cleaning agent consumptions. In order to achieve the best cleaning effect of the cleaning instrument, on one hand, for a product produced in batch, the size or quality of the 3D printing piece can be included in the cleaning process information, in other words, the cleaning process information received by the information interaction system includes the size information or quality information of the 3D printing piece; on the other hand, a detection module can be arranged in the cleaning instrument and used for detecting the size information or the quality information of the 3D printing piece. The detection module may detect size information or quality information of the 3D print in a direct or indirect manner. For example, the detection module may include a gravity sensor. The gravity sensor obtains the quality of the 3D printing piece by detecting the mass change of the cleaning liquid bin or the flexible tuck net before and after the 3D printing piece is placed; the detection module further comprises a liquid level sensor, and the volume of the 3D printing piece is judged by detecting the liquid level change of the cleaning liquid bin before and after the 3D printing piece is immersed.

It is understood that the identifier 60 and the information storage 70 may also adopt an RFID system (radio frequency identification system) or an NFC technology (near field communication technology), as long as information storage and identification can be achieved, for example, the information storage 70 adopts a magnetic card, and the identifier 60 adopts a card reader; the information storage 70 adopts an RFID electronic tag, and the identifier 60 adopts an RFID reader; the information storage 70 is an IC card, and the identifier 60 is a card reader.

In some embodiments, the control module further includes a control panel and a display screen, the control center 50 is electrically connected to the control panel and the display screen, cleaning process information, such as size and quality of printed material, can be manually entered on the control panel, and can be manually controlled through the control panel, and the display screen displays the cleaning process information.

After the ultrasonic cleaning module and the impeller cleaning module work for a long time, the temperature of the cleaning agent is increased, so that the temperature of the cleaning agent is not in the optimal working temperature range, and the cleaning effect is influenced; meanwhile, the temperature rise of the cleaning agent may cause the cleaning agent to volatilize. To solve this problem, in some embodiments, a temperature control component may be added to the cleaning apparatus. The temperature of the cleaning agent in the cleaning chamber 30 can be controlled by the temperature control component, and the dissolving power of the cleaning agent for dissolving the photosensitive resin in the liquid is improved, so that the cleaning effect is ensured. The temperature control component may comprise a temperature sensor.

In some embodiments, the cleaning instrument may be additionally provided with a liquid adding device, and when the cleaning agent in the cleaning solution bin is damaged to a certain extent, the liquid adding device may add the corresponding cleaning agent to the cleaning solution bin or replace the corresponding cleaning agent. Specifically, when the cleaner concentration in the cleaning solution storehouse is lower, the higher cleaner of concentration can be added to the cleaning solution storehouse to the liquid feeding device, adjusts the cleaner concentration in the cleaning solution storehouse to reach the cleaning requirement, so, can avoid the cleaner to cause the waste in frequently changing.

The embodiment of the invention also provides a cleaning method for cleaning the 3D printing piece, which comprises the following steps:

setting an information interaction system, wherein the information interaction system receives cleaning process information and transmits the information to a control center of the cleaning instrument, and specifically, the information interaction system comprises an identifier, the identifier is used for identifying an information storage, and the information storage stores the cleaning process information;

the cleaning instrument cleans the 3D printing piece according to the cleaning process information;

and acquiring the surface area or mass data of the 3D printed piece, calculating the loss of the cleaning agent by the cleaning instrument according to the surface area and/or mass data of the 3D printed piece after each cleaning, and reminding an operator to replace the cleaning agent when the cleaning agent does not meet the cleaning requirement.

The loss calculation of the cleaning agent can adopt two modes, namely a common calculation mode and a precise calculation mode.

The general calculation method is as follows: the quality of the liquid printing material that the 3D printing piece consumed is detected, specifically, the quality before and after the liquid tank that sets up the liquid printing material on the 3D printer is printed in setting up gravity sensor detection, and the quality difference before and after printing is the liquid printing material quality that consumes, namely the quality M of 3D printing piece. Or the gravity sensor is arranged in the cleaning instrument, and the mass M of the 3D printing piece is obtained by detecting the mass change of the cleaning liquid bin or the flexible net bag before and after the printing piece is placed. And the cleaning agent loss factor is P, the cleaning agent loss factor P is the cleaning agent mass required for cleaning the 3D printing piece with unit mass, and the cleaning agent loss amount is M P. The cleaning agent loss factor P is obtained through multiple times of experimental calculation. The cleaning agent loss factor P here means that after each cleaning, this partial mass of cleaning agent cannot meet the next cleaning requirement. The cleaning agent loss factor P is such that for a particular printing material, the different printing material loss factors P differ. When the loss of the cleaning agent reaches a certain value, for example, 70% of the total cleaning agent, the cleaning agent needs to be replaced.

The mass M of the 3D print can also be detected directly.

The precise calculation mode is as follows: model file and the surface area data of 3D printing piece lead in the 3D printer, and the 3D printer is connected to the purger electricity, obtains the surface area S of 3D printer through the 3D printer, and cleaner loss factor is Q, and cleaner loss factor Q is the required cleaner quality of 3D printing piece of washing unit surface area, and the molding complexity of 3D printing piece is C, and then the loss of cleaner is S Q C. The higher the design complexity of the model is, the more difficult the cleaning agent is to fully contact the surface of the model, so the more cleaning agent is consumed, the larger the modeling complexity C is, and the modeling complexity C is obtained by measurement and calculation according to the model type of the 3D printed piece or obtained by multiple times of experiments.

Whether the mode is a common calculation mode or a precise calculation mode, certain errors exist, furthermore, the actual cleaning agent loss after each cleaning is counted, the estimated cleaning agent loss calculated before cleaning is compared, and the estimated cleaning agent loss of the next cleaning is adjusted through a feedback algorithm by combining with a three-dimensional model file of a 3D printing piece. Through statistics of actual detergent loss, relevant parameters including a detergent loss factor P, a detergent loss factor Q and modeling complexity C can be corrected, so that detergent loss calculation is more accurate.

The cleaning method for cleaning the 3D printed piece receives and acquires the cleaning process information through the information interaction system, and the 3D printed piece is cleaned according to the cleaning process information.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.