CN115782181A - 3D ink-jet printing equipment, control device and control method thereof - Google Patents

Abstract

The application provides a 3D ink-jet printing device, a control device and a control method thereof, which can control the 3D ink-jet printing device to use different radiation source control parameters to carry out differentiated printing in different printing modes. Therefore, the radiation source can be more flexibly controlled to provide radiation, and the printed object is effectively prevented from being incompletely cured due to insufficient radiation or being over-cured due to excessive radiation in the printing process. The problems that the energy is wasted, the service life of the radiation source is shortened, and the forming precision of the object is poor due to insufficient energy or excessive energy in a forming area due to the fact that the radiation source is always in an open state and/or the control conditions of the radiation sources for printing different objects are the same in the printing process are solved.

Description

3D ink-jet printing equipment, control device and control method thereof

Technical Field

The application relates to the technical field of 3D ink-jet printing equipment, in particular to 3D ink-jet printing equipment, a control device and a control method thereof.

Background

A 3D inkjet printing device is a printing device that can print 3D models by additive manufacturing techniques. Additive manufacturing techniques may also be referred to as 3D printing techniques. 3D ink jet printing equipment is at the in-process of printing the 3D model, can form the layer of 3D model and the successive layer stack finally forms the 3D model through the successive layer, has that the shaping is efficient, the material is extravagant few, can effectively practice thrift manufacturing cost to can make various structures complicacy, advantages such as 3D model that have the aesthetic feeling.

The 3D ink-jet printing equipment in the prior art comprises a radiation source, a printing head, a leveling component and the like, wherein the radiation source is always in an open state in the printing process and/or the control conditions for printing different object radiation sources are the same, so that the problems of energy waste, reduction in the service life of the radiation source, and poor object forming precision caused by insufficient energy or excessive energy in a forming area are caused.

Disclosure of Invention

The application provides a 3D ink-jet printing device, a control device and a control method thereof, which are used for solving the problems of poor object forming precision caused by energy waste, reduced service life of a radiation source, insufficient energy or excessive energy in a forming area in the prior art.

The present application provides in a first aspect a method for controlling a 3D inkjet printing apparatus, the 3D inkjet printing apparatus including: the device comprises a control device, a printing head, a first radiation source and a second radiation source, wherein the first radiation source and the second radiation source are respectively positioned on two sides of the printing head; the control device is used for executing a control method, and the control method comprises the following steps: determining a printing mode of a 3D model to be printed; the printing mode is one of a first printing mode and a second printing mode, and the radiation source control parameters of the first printing mode and the second printing mode are different; determining printing data of the 3D model according to the model data of the 3D model; in the printing mode, the 3D ink-jet printing device is controlled to print the 3D model based on the printing data. Therefore, the control method of the 3D inkjet printing device provided by the embodiment of the application can control the 3D inkjet printing device to perform differentiated printing by using different radiation source control parameters in different printing modes. Therefore, the optimal printing mode can be determined in advance before the 3D ink-jet printing equipment prints the 3D model, the radiation source is controlled to provide radiation more flexibly, and the condition that the printed object is incompletely cured or excessively cured due to insufficient radiation in the printing process is effectively prevented. The problems that in the printing process, the radiation source is always in an open state and/or the control conditions of the radiation sources for printing different objects are the same, so that energy waste is caused, the service life of the radiation source is shortened, and the forming precision of the objects is poor due to insufficient energy or excessive energy in a forming area are solved. In addition, the control logic of the control method provided by the embodiment of the application is simple, the service life of the radiation source can be effectively prolonged on the premise of meeting the requirement of the forming precision of the printed object, and the use cost of the 3D ink-jet printing equipment can be reduced.

In an embodiment of the first aspect of the present application, the control device specifically obtains model data of the 3D model; and determining the printing mode of the 3D model to be printed according to the model data of the 3D model. Therefore, in this embodiment, the control device can determine the printing mode according to the model data of the 3D model to be printed more automatically and intelligently, and make the determined printing mode more suitable for the current 3D model.

In an embodiment of the first aspect of the present application, the control device specifically receives, through the operation interface, a printing mode of the 3D model to be printed, which is determined by the user according to the model data of the 3D model. Therefore, in this embodiment, the control device may determine the radiation source control parameter according to the received printing mode indicated by the user, so that calculation for determining the printing mode is not required, the calculation amount required by the control device is reduced, the control of the user on the 3D inkjet printing apparatus is enhanced, and the use experience of the user is improved.

In an embodiment of the first aspect of the present application, the model data includes: at least one of format information of the data, structure information of the model, and color information of the model.

In an embodiment of the first aspect of the application, the radiation source control parameter is for controlling one of the first and second radiation sources to provide radiation in a first printing mode or for controlling the first and second radiation sources to provide radiation in a second printing mode. Therefore, the embodiment can avoid the problems that the radiation source is always in the on state in the printing process and/or the control conditions of the radiation sources for printing different objects are the same, so that the energy is wasted, the service life of the radiation source is reduced, and the forming precision of the object is poor due to insufficient energy or excessive energy in the forming area.

In an embodiment of the first aspect of the present application, the 3D inkjet printing apparatus further comprises a leveling component, the first radiation source, the leveling component, the print head, and the second radiation source being arranged in sequence in the first scanning direction; the first printing mode includes: when the printing head moves towards the first scanning direction, the first radiation source provides radiation, and the second radiation source does not provide radiation; when the printing head moves towards the second scanning direction, the first radiation source and the second radiation source do not provide radiation; the second printing mode includes: the first radiation source providing radiation while the print head is moving in a first scanning direction; the second radiation source provides radiation while the print head is moving in a second scan direction; the first scanning direction and the second scanning direction are opposite to each other. Therefore, in this embodiment, in the second printing mode, in the inkjet printing process in the second scanning direction, the control device controls the second radiation source to provide radiation to the ejected forming material, so as to further improve the positioning accuracy of the ink droplets, further prevent the ink droplets from penetrating or diffusing to adjacent positions at the target landing position, and make the surface definition of the formed three-dimensional object higher and the surface details richer.

In an embodiment of the first aspect of the present application, the second printing mode further comprises: the intensity of radiation provided by the first radiation source is greater when the print head is moved in the first scanning direction than when the print head is moved in the second scanning direction. Therefore, in the embodiment, during the inkjet printing process of the printing head in the second scanning direction, the radiation provided by the second radiation source does not completely solidify the molding material ejected by the printing head, and when the leveling component levels the molding material ejected in the current stroke during the inkjet printing process in the first scanning direction, the leveling component can also level the molding material ejected in the previous stroke, so as to further improve the surface accuracy of the material layer.

In an embodiment of the first aspect of the present application, in the printing mode, controlling the 3D inkjet printing apparatus to print the 3D model based on the print data includes: when the printing head is in the printing area of the 3D model, controlling the printing head to move at a preset speed at a constant speed; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, and the second radiation source is controlled to provide radiation with a second preset intensity.

In an embodiment of the first aspect of the present application, in the printing mode, the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data further includes: when the printing head moves out of the printing area of the 3D model, controlling the printing head to move in a deceleration mode until the speed is 0; in the first printing mode, controlling the first radiation source to provide radiation with a third preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a third preset intensity, and controlling the second radiation source to provide radiation with a fourth preset intensity; the third preset intensity is smaller than the first preset intensity, and the fourth preset intensity is smaller than the second preset intensity. Therefore, in the embodiment, the radiation intensity provided by the radiation source in the deceleration area is controlled to be smaller than the radiation intensity provided in the uniform speed area within the printing area, so that the radiation energy received by the forming material in the unit area within the printing area is uniform or basically uniform, and the uniformity of the material performance of the three-dimensional object is improved.

In an embodiment of the first aspect of the present application, in the printing mode, the controlling the 3D inkjet printing apparatus to print the 3D model based on the printing data further includes: when the printing head moves out of the printing area of the 3D model, controlling the printing head to move in a deceleration mode until the speed is 0; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, the second radiation source is controlled to provide radiation with a second preset intensity, and the deceleration of the first radiation source is smaller than that of the second radiation source. Therefore, in the present embodiment, in the second printing mode, in the deceleration region within the printing region, the deceleration of the first radiation source is controlled to be smaller than the deceleration of the second radiation source, so that the time for which the first radiation source provides radiation in the deceleration region is longer than the time for which the second radiation source provides radiation in the deceleration region, thereby being beneficial to improve the uniformity or the substantial uniformity of the radiation energy received by the molding material in the unit area within the deceleration region, and the radiation energy received by the molding material in the unit area within the deceleration region is higher than the radiation energy received by the molding material in the unit area within the uniform velocity region, thereby improving the degree of curing around the three-dimensional object, improving the uniformity of the material performance around the three-dimensional object, and improving the surface accuracy of the 3D model.

In an embodiment of the first aspect of the present application, in the printing mode, controlling the 3D inkjet printing apparatus to print the 3D model based on the print data includes: in a first printing mode, in a first scanning direction, when a first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with a first preset intensity; in a second printing mode, in the first scanning direction, when a first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with first preset intensity; and in a second scanning direction, when the second radiation source is in the printing area of the 3D model, controlling the second radiation source to pass through the printing area at a constant speed and providing radiation with a second preset intensity. Therefore, in this embodiment, in the printing area range, the first radiation source and the second radiation source are controlled to pass through at a constant speed, so as to ensure that the radiation energy received by the molding material in a unit area in the printing area range is consistent or substantially consistent, thereby improving the consistency of the material performance of the three-dimensional object.

In an embodiment of the first aspect of the present application, in the printing mode, the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data further includes: when the speed of the printing head is reduced to 0 and before the printing head enters a printing area of the 3D model, controlling the printing head to accelerate to a preset speed in the opposite direction and move at a constant speed at the preset speed; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, and the second radiation source is controlled to provide radiation with a second preset intensity.

The present application in a second aspect provides a 3D inkjet printing apparatus comprising: a print head, a first radiation source, a second radiation source and a control device; the first radiation source and the second radiation source are respectively positioned on two sides of the printing head; the control device is used for executing the control method of the 3D ink jet printing equipment according to any one of the first aspect of the application.

The third aspect of the present application provides a control device of a 3D inkjet printing apparatus, comprising: the device comprises a first determining module, a second determining module and a printing module, wherein the first determining module is used for determining a printing mode of a 3D model to be printed; the printing mode is one of a first printing mode and a second printing mode, and the radiation source control parameters of the first printing mode and the second printing mode are different; the second determining module is used for determining the printing data of the 3D model according to the model data of the 3D model; and the control module is used for controlling the 3D ink-jet printing equipment to print the 3D model based on the printing data in the printing mode.

In an embodiment of the third aspect of the present application, the first determining module is configured to obtain model data of a 3D model; and determining the printing mode of the 3D model to be printed according to the model data of the 3D model.

In an embodiment of the third aspect of the present application, the first determining module is configured to receive, through the operation interface, a printing mode of the 3D model to be printed, which is determined by the user according to the model data of the 3D model.

In an embodiment of the third aspect of the present application, the model data comprises: at least one of format information of the data, structure information of the model, and color information of the model.

In an embodiment of the third aspect of the present application, the radiation source control parameter is for controlling one of the first and second radiation sources to provide radiation in the first printing mode or for controlling the first and second radiation sources to provide radiation in the second printing mode.

In an embodiment of the third aspect of the present application, the 3D inkjet printing apparatus further includes a leveling component, the first radiation source, the leveling component, the print head, and the second radiation source being arranged in sequence in the first scanning direction; the first printing mode includes: when the printing head moves towards the first scanning direction, the first radiation source provides radiation, and the second radiation source does not provide radiation; when the printing head moves towards the second scanning direction, the first radiation source and the second radiation source do not provide radiation; the second printing mode includes: the first radiation source providing radiation while the print head is moving in a first scanning direction; the second radiation source provides radiation while the print head is moving in a second scan direction; the first scanning direction and the second scanning direction are opposite to each other.

In an embodiment of the third aspect of the present application, the second printing mode further comprises: the intensity of radiation provided by the first radiation source is greater when the print head is moved in the first scanning direction than when the print head is moved in the second scanning direction.

In an embodiment of the third aspect of the present application, the control module is configured to control the printing head to move at a constant speed at a preset speed when the printing head is in a printing area of the 3D model; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, and the second radiation source is controlled to provide radiation with a second preset intensity.

In one embodiment of the third aspect of the present application, the control module is configured to, after the print head moves out of the printing area of the 3D model, control the print head to move to a speed of 0 at a reduced speed; in the first printing mode, controlling the first radiation source to provide radiation with a third preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a third preset intensity, and controlling the second radiation source to provide radiation with a fourth preset intensity; the third preset intensity is smaller than the first preset intensity, and the fourth preset intensity is smaller than the second preset intensity.

In an embodiment of the third aspect of the present application, the control module is configured to, after the print head moves out of the printing area of the 3D model, control the print head to move to a speed of 0 at a reduced speed; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, the second radiation source is controlled to provide radiation with a second preset intensity, and the deceleration of the first radiation source is smaller than that of the second radiation source.

In an embodiment of the third aspect of the present application, the control module is configured to, in the first printing mode and in the first scanning direction, control the first radiation source to pass through the printing area at a constant speed and provide radiation of a first preset intensity when the first radiation source is in the printing area of the 3D model; in a second printing mode, in a first scanning direction, when a first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with first preset intensity; and in a second scanning direction, when the second radiation source is in the printing area of the 3D model, controlling the second radiation source to pass through the printing area at a constant speed and providing radiation with a second preset intensity.

In an embodiment of the third aspect of the present application, the control module is configured to, when the speed of the printing head is reduced to 0 and before the printing head enters the printing area of the 3D model, control the printing head to accelerate to a preset speed in an opposite direction, and move at a constant speed at the preset speed; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, and the second radiation source is controlled to provide radiation with a second preset intensity.

A fourth aspect of the present application provides an electronic device, comprising: a processor and a memory communicatively coupled; wherein the memory has stored therein a computer program which, when executed by the processor, causes the processor to carry out the method according to any one of the first aspect of the present application.

A fifth aspect of the present application provides a storage medium storing computer instructions which, when executed by a computer, cause the computer to perform a method as in any one of the first aspects of the present application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an embodiment of a 3D inkjet printing apparatus provided in the present application;

fig. 2 is a schematic flowchart of an embodiment of a control method of a 3D inkjet printing apparatus provided in the present application;

FIG. 3 is a schematic illustration of a printing mode and radiation source control parameters provided herein;

FIG. 4 is a schematic view of an operator interface provided herein;

fig. 5 is a schematic structural diagram of a 3D inkjet printing apparatus provided in the present application;

fig. 6 is a schematic diagram of a printing area of a 3D inkjet printing apparatus provided herein;

fig. 7 is another schematic view of a printing area of a 3D inkjet printing apparatus provided herein;

fig. 8 is a schematic diagram of a control device of a 3D inkjet printing apparatus provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and claims of this application and in the above-described drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical means of the present application will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 1 is a schematic structural diagram of an embodiment of a 3D inkjet printing apparatus provided in the present application, where the 3D inkjet printing apparatus shown in fig. 1 includes: a control device 10, a first radiation source 21, a second radiation source 22, a printing head 3, a leveling component 4, a carriage 5, a forming platform 8, a lifting mechanism 9 and a chamber wall 12.

As shown in fig. 1, a first radiation source 21, a second radiation source 22, a print head 3, a leveling member 4, a carriage 5, a forming table 8, and a lift mechanism 9 are disposed within the chamber wall 12.

The first radiation source 21, the second radiation source 22, the print head 3 and the leveling unit 4 are disposed on the carriage 5.

Carriage 5 is reciprocally movable on an X-beam of the printing apparatus, which is disposed within chamber wall 12 of the 3D inkjet printing apparatus, in the X-direction shown in fig. 1, not shown in fig. 1.

While carriage 5 is reciprocating, print head 3 may be used to eject modeling material 6 onto modeling platform 8, forming layer 7n of the 3D model. The modeling platform 8 is used to support the ejected modeling material 6 and the 3D model 7 formed after printing.

In one embodiment, the print head 3 may be a piezoelectric ink jet print head or a thermal bubble type ink jet print head; which may be a single pass printhead, a dual pass printhead, or a combination single and dual pass printhead. The embodiment of the present application does not limit the specific implementation manner of the print head 3, as long as the inkjet printing can be normally implemented.

In one embodiment, the modeling material 6 may specifically include a modeling material and a support material. Wherein the model material is used for printing the 3D model 7 itself to form an object to be printed, and the support material is used for providing support for the 3D model 7 in the printing process of the 3D model 7 to ensure the printing accuracy of the 3D model. In order to meet the printing requirement, the embodiment of the application can also use the supporting material to print the part of the object to be printed and/or use the model material to print the part of the supporting structure, and the application is not limited.

A first radiation source 21 and a second radiation source 22 are arranged on both sides of the print head 3. The first and second radiation sources 21 and 22 may be used to provide radiation to the molding material 6 ejected by the print head 3, respectively, to cure the molding material 6 to form the cured material layer 7n.

In one embodiment, the 3D inkjet printing apparatus as shown in fig. 1 further comprises a leveling component 4. The leveling part 4 can be used to level the molding material 6 ejected from the print head 3. Preferably, the length of the leveling component 4 in the direction of the jet hole array of the printing head 3 is longer than the distance between the jet holes at two ends in the direction of the jet hole array of the printing head 3; the leveling aid 4 allows for leveling of the material ejected in the previous pass while also leveling the material ejected in the current pass.

In an embodiment, the leveling component 4 is arranged between the first radiation source 21 and the print head 3.

In one embodiment, the leveling component 4 may include leveling rollers that rotate to remove excess modeling material 6 dispensed onto the modeling platform 8 to improve the accuracy of the layer 7n of material and, thus, the accuracy of the 3D model 7.

The lifting mechanism 9 is used to change the relative distance between the forming table 8 and the print head 3 in the Z direction in the figure, so as to print the layers 7n forming the 3D model layer by layer.

In one embodiment, the forming table 8 may be at rest in the Z direction, and the lifting mechanism may be used to change the position of the print head 3 in the Z direction, thereby adjusting the distance between the print head 3 and the forming table 8 in the Z direction.

Alternatively, in the embodiment shown in fig. 1, the print head 3 is at rest in the Z direction, and the lifting mechanism 9 can be used to change the position of the forming table 8 in the Z direction, thereby adjusting the distance between the print head 3 and the forming table 8 in the Z direction.

The present application does not limit the driving method and driving structure of the elevator 9.

The control means 10 may be adapted to control the 3D inkjet printing device to print the 3D model 7. The control device 10 may be an electronic device such as a computer or a server, or the control device 10 may also be a processing circuit provided in the 3D inkjet printing apparatus, such as a processor such as a CPU, an MCU, or an SOC.

The embodiment of the application also provides a control method of the 3D inkjet printing device, which can be executed by the control device 10 shown in fig. 1.

Fig. 2 is a schematic flowchart of an embodiment of a control method of a 3D inkjet printing apparatus provided in the present application. The control method shown in fig. 2 includes:

s101: the control device 10 determines a printing mode of the 3D model to be printed. Wherein the print mode is one of a first print mode and a second print mode. The radiation source control parameters of the first and second printing modes are different. The radiation source control parameters refer to control parameters used when the control device 10 controls the first radiation source 21 and the second radiation source 22.

It is understood that the first printing mode and the second printing mode are performed by the 3D inkjet printing apparatus in different print jobs. The printing mode comprises a first printing mode, a second printing mode, a third printing mode and a fourth printing mode, wherein the printing jobs in different times correspond to different forming processes, and the first printing mode and the second printing mode are executed in the printing jobs in different times, specifically, only one printing mode is executed in one printing job, such as the first printing mode or the second printing mode; that is, only the first printing mode or the second printing mode is performed in the same molding process; at least one object to be printed is printed in one forming process or in one print job.

In an embodiment, the radiation source control parameters corresponding to different printing modes are stored in a memory, so that the control device 10 can retrieve the radiation source control parameters corresponding to different printing modes from the memory. The memory may be provided inside the control apparatus 10, or may be a device external to the control apparatus 10.

Fig. 3 is a schematic diagram of a printing mode and radiation source control parameters provided in the present application. As shown in fig. 3, the memory may store therein a correspondence between the first printing mode and the first radiation source control parameter, and a correspondence between the second printing mode and the second radiation source control parameter. Then, after the control device 10 determines one of the first printing mode or the second printing mode, the first radiation source control parameter corresponding to the first printing mode or the second radiation source control parameter corresponding to the second printing mode may be determined through the correspondence relationship as shown in fig. 3.

It is to be understood that the first radiation source control parameter is different from the second radiation source control parameter. Illustratively, the control device 10 controls one of the first and second radiation sources 21, 22 to provide radiation in one print job according to a first radiation source control parameter; the control device 10 controls two of the first and second radiation sources 21 and 22 to provide radiation, respectively, in one print job in accordance with the second radiation source control parameter.

In a specific implementation manner of S101, the control device 10 may acquire model data of the 3D model to be printed, and determine the printing mode of the 3D model to be printed as the first printing mode or the second printing mode according to the model data of the 3D model. In one embodiment, the model data of the 3D model comprises: at least one of format information of the data, structure information of the model, and color information of the model. Therefore, in this embodiment, the control device 10 can determine the printing mode more automatically and intelligently according to the model data of the 3D model to be printed, and make the determined printing mode more suitable for the current 3D model.

In another specific implementation manner of S101, the control device 10 may receive, through the operation interface, a printing mode of the 3D model determined by the user from the model data of the 3D model. For example, fig. 4 is a schematic view of an operation interface provided in the present application. The operation interface shown in fig. 4 may be provided by the control apparatus 10. For example, the control device 10 may be connected to a display device such as a display, and display information corresponding to two print modes through an operation interface provided by the display. Subsequently, the control device 10 receives the print mode determined by the user from the model data of the 3D model through the operation interface provided by the display. Therefore, in this embodiment, the control device 10 may determine the radiation source control parameter according to the received printing mode indicated by the user, so that calculation for determining the printing mode is not required, the calculation amount required by the control device 10 is reduced, the control of the 3D inkjet printing apparatus by the user is enhanced, and the use experience of the user is improved.

S102: the control device 10 determines print data of the 3D model from model data of the 3D model to be printed. The print data includes data for controlling the print head 3 to perform ink jet printing by the control device 10, such as whether the print head 3 ejects ink, the position where the print head 3 ejects ink, and the type of ink ejection material, such as color, etc. The embodiment of the present application does not limit the specific composition and setting of the print data.

S103: in the print mode determined in S101, the control device 10 controls the 3D inkjet printing apparatus to print the 3D model based on the print data determined in S102.

Illustratively, the control device 10 controls one of the first radiation source 21 and the second radiation source 22 to provide radiation when controlling the printhead 3 to perform inkjet printing according to print data in the first printing mode; alternatively, the control device 10 controls two radiation sources of the first radiation source 21 and the second radiation source 22 to respectively supply radiation when controlling the print head 3 to perform ink jet printing according to the print data in the second printing mode.

In summary, the control method of the 3D inkjet printing apparatus provided by the embodiment of the present application can control the 3D inkjet printing apparatus to perform differentiated printing by using different radiation source control parameters in different printing modes. Therefore, the optimal printing mode can be determined in advance before the 3D ink-jet printing equipment prints the 3D model, the radiation source is controlled to provide radiation more flexibly, and incomplete curing of a printed object or excessive curing of the printed object caused by excessive radiation due to insufficient radiation in the printing process is effectively prevented. The problems that the energy is wasted, the service life of the radiation source is shortened, and the forming precision of the object is poor due to insufficient energy or excessive energy in a forming area due to the fact that the radiation source is always in an open state and/or the control conditions of the radiation sources for printing different objects are the same in the printing process are solved. In addition, the control logic of the control method provided by the embodiment of the application is simple, the service life of the radiation source can be effectively prolonged on the premise of meeting the requirement of the forming precision of the printed object, and the use cost of the 3D ink-jet printing equipment can be reduced.

Fig. 5 is a schematic structural diagram of a 3D inkjet printing apparatus provided in the present application. In the embodiment shown in fig. 5, the first scanning direction of the X negative direction is taken as the negative scanning direction, and the second scanning direction of the X positive direction is taken as the positive scanning direction. The first radiation source 21, the leveling component 4, the print head 3 and the second radiation source 22 of the 3D inkjet printing apparatus are arranged in sequence in the first scanning direction. And the first radiation source 21, the leveling unit 4, the print head 3 and the second radiation source 22 are all arranged on the carriage 5. As the carriage 5 reciprocates on the X-beam, the first radiation source 21, the leveling unit 4, the print head 3, and the second radiation source 22 also reciprocate between the positive scanning direction and the negative scanning direction following the carriage 5. During the reciprocating movement, the print head 3 supplies the molding material, and one or both of the first and second radiation sources 21 and 22 supply radiation.

In one embodiment, control device 10 may be used to control movement of carriage 5, control printhead 3 to provide modeling material, and control one or both of first radiation source 21 and second radiation source 22 to provide radiation.

For the 3D inkjet printing apparatus as shown in fig. 5, the control device 10 controls the first radiation source 21 to supply radiation while controlling the second radiation source 22 not to supply radiation when controlling the print head 3 to inkjet print according to print data in the first print mode. Specifically, the control device 10 controls the print head 3 to perform the ink-jet printing, controls the leveling part 4 to level the ejected molding material 6, and controls the first radiation source 21 to supply radiation to the leveled material layer 7n to cure the material layer to form a cured material layer and controls the second radiation source 22 not to supply radiation during the carriage 5 is moved in the negative scanning direction. During the movement of the carriage 5 in the forward scanning direction, the control device 10 controls the printing head 3 to perform the ink-jet printing, controls the leveling part 4 not to level the ejected molding material 6, and controls neither the first radiation source 21 nor the second radiation source 22 to supply the radiation.

For the 3D inkjet printing apparatus as shown in fig. 5, the control device 10 controls the first radiation source 21 and the second radiation source 22 to supply radiation when controlling the print head 3 to inkjet print according to print data in the second printing mode. Specifically, the control device 10 controls the print head 3 to perform ink-jet printing, controls the leveling unit 4 to level the ejected molding material 6, and controls the first radiation source 21 to supply radiation to the leveled material layer 7n to cure the material layer to form a cured material layer and controls the second radiation source 22 not to supply radiation during movement of the carriage 5 in the negative scan direction. While the carriage 5 is moving in the forward scanning direction, the control device 10 controls the printing head 3 to perform ink-jet printing, the control device 10 controls the second radiation source 22 to supply radiation to the ejected molding material 6 under the control of the control device 10, and controls the first radiation source 21 not to supply radiation and the leveling part 4 not to perform leveling work. Therefore, in the second printing mode, in the forward ink-jet printing process, the control device 10 controls the second radiation source 22 to provide radiation to the ejected forming material 6, so that the positioning accuracy of the ink droplets can be further improved, and the ink droplets are further prevented from permeating or diffusing to adjacent positions at the target landing positions, so that the formed three-dimensional object has higher surface definition and richer surface details.

In one embodiment, the control device 10 is configured such that in the second printing mode, the first radiation source 21 provides a greater intensity of radiation when the print head 3 is moved in the negative scan direction than the second radiation source 22 provides when the print head 3 is moved in the positive scan direction. So that the second radiation source 22 provides radiation that does not completely cure the molding material 6 ejected by the print head 3 during the forward scanning direction inkjet printing, and the leveling unit 4 can also level the molding material 6 ejected during the previous pass while leveling the molding material 6 ejected during the current pass during the reverse scanning direction inkjet printing to further improve the surface finish of the material layer 7n.

In one embodiment, the length of the leveling member 4 in the stepping direction is longer than the length of the print head. The step direction is a horizontal direction perpendicular to the scanning direction, i.e., a Y direction.

Fig. 6 is a schematic diagram of a printing area of a 3D inkjet printing apparatus provided in the present application. The circular area as shown in fig. 6 is a print area. The path of movement of the print head 3 during printing of the material layer is indicated by the arrows in the figure. The X direction is the positive scan direction and the X negative direction is the negative scan direction, and a movement in one scan direction is referred to as a pass. Then when the control means 10 controls the printing head 3 to finish printing of pass1 in the X direction, the printing head 3 is controlled to step by a distance of 1 pass in the Y direction, and the control means 10 controls the printing head 3 to perform the next pass, i.e., ink-jet printing of pass2, in the-X direction, and repeats such movement until one layer of the three-dimensional object is formed. The Y direction is also referred to as the step direction.

In the 3D inkjet printing apparatus provided in the embodiment of the present application, a printing area for printing a 3D model specifically refers to an area where the printing head 3 performs inkjet printing. The control device 10 controls the printing head 3 to move at a constant speed at a preset speed when the printing head 3 is within the printing area of the 3D model.

Referring to fig. 6, when the printing head 3 is in the printing region of the 3D model, when the control device 10 controls the carriage 5 to move in the forward scanning direction of pass1, pass3, etc. in the first printing mode, the control device 10 controls the printing head 3, the first radiation source 21, and the second radiation source 22 to move at a constant speed in the printing region at a preset speed, and controls neither the first radiation source 21 nor the second radiation source 22 to provide radiation. And controlling the carriage 5 to move in the negative scanning directions of pass2, pass4 and the like, wherein the control device 10 controls the printing head 3, the first radiation source 21 and the second radiation source 22 to move at a constant speed in the printing area at a preset speed, controls the first radiation source 21 to provide radiation with a first preset intensity, and controls the second radiation source 22 not to provide radiation.

When the printing head 3 is in the printing area of the 3D model, and the control device 10 is in the second printing mode, and controls the carriage 5 to move in the forward scanning direction of pass1, pass3, and the like, the control device 10 controls the printing head 3, the first radiation source 21, and the second radiation source 22 to move at a constant speed in the printing area at a preset speed, controls the first radiation source 21 not to provide radiation, and controls the second radiation source 22 to provide radiation of a second preset intensity. And controlling the carriage 5 to move in the negative scanning directions of pass2, pass4 and the like, wherein the control device 10 controls the printing head 3, the first radiation source 21 and the second radiation source 22 to move at a constant speed in the printing area at a preset speed, controls the first radiation source 21 to provide radiation with a first preset intensity, and controls the second radiation source 22 not to provide radiation.

In one embodiment, after the printing head 3 completes one pass of inkjet printing and moves out of the printing area of the 3D model, the control device 10 further controls the printing head 3, the first radiation source 21 and the second radiation source 22 to decelerate to 0, that is, controls the carriage 5 to decelerate to 0, and then moves in the stepping direction by a pass distance to perform the next pass of inkjet printing.

In another embodiment, after the print head 3 completes one-stroke inkjet printing and moves out of the printing area of the 3D model, in the first printing mode, in the first scanning direction, illustratively in the negative scanning directions of pass2, pass4, and the like, the control device 10 controls the carriage 5 to move in the negative scanning directions of pass2, pass4, and the like, the control device 10 controls the first radiation source 21 to move at a constant speed in the printing area at a preset speed, controls the first radiation source 21 to provide radiation with a first preset intensity, and controls the second radiation source 22 not to provide radiation; in the second scanning direction, for example, in the forward scanning direction of pass1, pass3, etc., the control device 10 controls the carriage 5 to move in the forward scanning direction of pass1, pass3, etc., the control device 10 controls the first radiation source 21 not to provide radiation and controls the second radiation source 22 not to provide radiation.

When the printing head 3 finishes one-stroke ink-jet printing and moves out of a printing area of the 3D model, in a second printing mode, the control device 10 controls the carriage 5 to move in forward scanning directions of pass1, pass3 and the like, and the control device 10 controls the second radiation source 22 to move at a constant speed in the printing area at a preset speed, controls the first radiation source 21 not to provide radiation, and controls the second radiation source 22 to provide radiation with a second preset intensity. The control device 10 controls the carriage 5 to move in the negative scanning directions of pass2, pass4 and the like, and the control device 10 controls the first radiation source 21 to move at a constant speed in the printing area at a preset speed, controls the first radiation source 21 to provide radiation with a first preset intensity, and controls the second radiation source 22 not to provide radiation.

In this embodiment, in the first printing mode or the second printing mode, after the control device 10 controls the first radiation source 21 or the second radiation source 22 to move out of the printing area at a constant speed, the control device 10 further controls the printing head 3 to decelerate to 0, and then move a pass distance in the stepping direction to perform inkjet printing of a next pass. In the embodiment, within the range of the printing area, the first radiation source 21 and the second radiation source 22 are controlled to pass through the printing area at a constant speed, so that the radiation energy received by the molding material in the unit area of the range of the printing area is ensured to be consistent or basically consistent, and the consistency of the material performance of the three-dimensional object is improved.

Fig. 7 is another schematic view of a printing area of a 3D inkjet printing apparatus provided in the present application. As shown in fig. 7, in the positive scanning direction and the negative scanning direction, there is a certain spatial distance between the first radiation source 21, the second radiation source 22 and the print head 3, wherein the relative distance between the first radiation source 21 and the print head 3 is L2, the relative distance between the second radiation source 22 and the print head 3 is L1, the print head performs deceleration movement after finishing ink jet printing in the current stroke, and the radiation sources also perform deceleration movement in the ink jet printing region at the same time, so when the control device 10 controls the print head 3 to perform deceleration movement, in the ink jet printing region, the control device 10 controls the first radiation source 21 and the second radiation source 22 to reduce the radiation intensity. Specifically, when the control device 10 controls the printing head 3 to move in a deceleration manner, in the ink jet printing region, the control device 10 controls the first radiation source 21 to provide radiation with a third preset intensity in the first printing mode, or controls the first radiation source 21 to provide radiation with a third preset intensity and controls the second radiation source 22 to provide radiation with a fourth preset intensity in the second printing mode; the third preset intensity is smaller than the first preset intensity, and the fourth preset intensity is smaller than the second preset intensity.

For example, referring to fig. 7, when the control device 10 controls the print head 3 to move out of the printing region in the negative scanning direction in the first printing mode, the control device 10 controls the first radiation source 21 to provide the third radiation intensity in the deceleration region (i.e., in the stroke range of L2) less than the first radiation intensity in the uniform velocity region. When the control device 10 controls the print head 3 to move out of the printing area in the negative scanning direction in the second printing mode, the control device 10 controls the first radiation source 21 to provide a third radiation intensity in the deceleration area (i.e., in the stroke range of L2) that is smaller than the first radiation intensity in the uniform velocity area; when the control device 10 controls the print head 3 to move out of the printing region in the forward scanning direction in the second printing mode, the control device 10 controls the second radiation source 22 to provide a fourth radiation intensity in the deceleration region (i.e., in the stroke range of L1) that is smaller than the second radiation intensity in the uniform velocity region. In the embodiment, within the range of the printing area, the radiation intensity provided by the radiation source in the deceleration area is controlled to be smaller than that provided in the uniform speed area, so that the radiation energy received by the forming material in a unit area within the range of the printing area is ensured to be consistent or basically consistent, and the consistency of the material performance of the three-dimensional object is improved.

In one embodiment, when control device 10 controls the deceleration of print head 3, control device 10 controls the deceleration of first radiation source 21 and second radiation source 22 to be different in the ink jet printing region. Specifically, when the control device 10 controls the deceleration movement of the print head 3, in the ink jet printing region, in the first printing mode, the control device 10 controls the first radiation source 21 to provide the radiation of the first preset intensity, or in the second printing mode, the first radiation source 21 to provide the radiation of the first preset intensity, the second radiation source 22 to provide the radiation of the second preset intensity, and the deceleration of the first radiation source is smaller than that of the second radiation source. Specifically, when the control device 10 controls the deceleration movement of the print head 3, in the ink jet printing region, in the second printing mode, in the negative direction scanning direction, the control device 10 controls the deceleration of the first radiation source 21 in the range of the deceleration region, i.e., L2, to be smaller than the deceleration of the second radiation source 22 in the range of the deceleration region, i.e., L1, in the positive direction scanning direction, so that the first radiation source 21 provides radiation in the deceleration region for a longer time than the second radiation source 22 provides radiation in the deceleration region, thereby facilitating improvement of uniformity of the radiation energy received by the molding material in a unit area in the deceleration region, and further, the molding material receives a higher radiation energy in a unit area in the deceleration region than in a unit area in the uniform velocity region, thereby improving the degree of curing around the three-dimensional object, improving uniformity of the performance around the three-dimensional object, and improving the surface accuracy of the 3D model.

In an embodiment, after the control device 10 further controls the printing head 3 to move in the stepping direction by a distance of pass while decelerating to 0, the control device 10 further controls the printing head 3 to accelerate to a preset speed in an opposite direction before entering the printing area of the 3D model, and to move into the printing area at a constant speed at the preset speed. And in the first printing mode, the control device 10 further controls the first radiation source 21 to provide the radiation with the first preset intensity during the uniform motion of the printing head 3 at the preset speed, or controls the first radiation source 21 to provide the radiation with the first preset intensity and controls the second radiation source 22 to provide the radiation with the second preset intensity in the second printing mode.

In one embodiment, the control device 10 may perform data processing based on model data of the 3D model, thereby obtaining print data corresponding to the model data. For example, the model data includes format information of the data, structure information of the model, and/or color information of the model, and the specific format information of the data refers to a data format of the model data, including a data format with color attribute and a data format without color attribute, such as an STL format, a PLY format, an OBJ format, a WRL format, and the like that can be recognized by slicing software, where the STL format is a data format without color attribute, and the PLY format, the OBJ format, and the WRL format are data formats with color attribute; the structural information of the model represents the shape of the model, and is a closed curved surface formed by splicing a series of triangular patches, generally, when the shape of the model is single, the number of the triangular patches in a unit area is small, and when the shape of the model is complex, and the number of the triangular patches in the unit area is large, the dendritic structures and the bulges on the surface are large.

In one embodiment, the first printing mode provided by the application can be referred to as a normal printing mode, and the second printing mode can be referred to as a chartlet printing mode or a detail printing mode. Before performing three-dimensional model printing, the user may select an appropriate printing mode such as a first printing mode or a second printing mode according to model data of the three-dimensional object. Specifically, when the data format of the model data of the three-dimensional object is a data format without color attributes, such as STL format, the first printing mode is selected; when the data format of the model data of the three-dimensional object is a data format with color attributes, such as a PLY format, an OBJ format or a WRL format, the second printing mode is preferentially selected without being influenced by the structural complexity of the three-dimensional object; when the three-dimensional object is a model with a single structure, namely the number of triangular patches in a unit area is smaller than a specified threshold value and the data format is a data format without color attributes such as an STL (Standard template library) format, selecting a first printing mode; and selecting a second printing mode when the three-dimensional object is a three-dimensional model with a complex structure, namely the number of triangular patches in a unit area is greater than a specified threshold value. The designated threshold value in the application is an empirical value, and can also be determined by the user according to the complexity of the object to be printed, so as to determine whether to select the first printing mode or the second printing mode.

In one embodiment, the control device 10 may be configured to perform slicing and layering processing on the acquired model data of the three-dimensional object by slicing software to obtain slice layer data, and perform data processing on the slice layer data to obtain layer print data.

In one embodiment, the control device 10 determines the printing mode through the model data of the 3D model in S101, determines the printing mode as the first printing mode when the data format of the model data of the three-dimensional object is a data format without color attributes such as STL format; and when the data format of the model data of the three-dimensional object is the data format with the color attribute, determining that the printing mode is the second printing mode.

In one embodiment, when the control device 10 determines the printing mode from the model data of the 3D model in S101, when the data format of the model data of the three-dimensional object is a data format without color attributes and the three-dimensional object is a structurally simple object, the printing mode is determined to be the first printing mode; selecting a second printing mode when the data format of the model data of the three-dimensional object is a data format without color attributes but the three-dimensional object is an object with a complex structure; and when the data format of the model data of the three-dimensional object is the data format with the color attribute, determining that the printing mode is the second printing mode.

In the foregoing embodiments, the control method and steps executed by the control device of the 3D inkjet printing apparatus provided in the embodiments of the present application are described, but in order to implement each function in the control method provided in the embodiments of the present application, the control device may include a hardware structure and/or a software module as an execution main body, and implement each function in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether any of the above-described functions is implemented as a hardware structure, a software module, or a hardware structure plus a software module depends upon the particular application and design constraints imposed on the technical solution.

For example, fig. 8 illustrates a control device of a 3D inkjet printing apparatus provided in the present application, which can be used to execute a control method of the 3D inkjet printing apparatus provided in any one of the present applications. For example, the control device 100 includes: a first determination module 1001, a second determination module 1002, and a control module 1003. The first determining module 1001 is configured to determine a printing mode of a 3D model to be printed; the second determining module 1002 is configured to determine print data of the 3D model according to model data of the 3D model; the control module 1003 is configured to control the 3D inkjet printing apparatus to print the 3D model based on the print data in the print mode.

In one embodiment, the first determining module 1001 is configured to obtain model data of a 3D model; and determining the printing mode of the 3D model to be printed according to the model data of the 3D model.

In one embodiment, the first determining module 1001 is configured to receive, through the operation interface, a printing mode of the 3D model to be printed, which is determined by the user according to the model data of the 3D model.

In one embodiment, the model data includes: at least one of format information of the data, structure information of the model, and color information of the model.

In an embodiment, the radiation source control parameter is for controlling one of the first and second radiation sources to provide radiation in the first printing mode or for controlling the first and second radiation sources to provide radiation in the second printing mode.

In one embodiment, the 3D inkjet printing apparatus further comprises a leveling component, the first radiation source, the leveling component, the print head, and the second radiation source being arranged in sequence in a first scanning direction; the first printing mode includes: when the printing head moves towards the first scanning direction, the first radiation source provides radiation, and the second radiation source does not provide radiation; when the printing head moves towards the second scanning direction, the first radiation source and the second radiation source do not provide radiation; the second printing mode includes: the first radiation source providing radiation while the print head is moving in a first scanning direction; the second radiation source provides radiation while the print head is moving in a second scan direction; the first scanning direction and the second scanning direction are opposite to each other.

In one embodiment, the second printing mode further comprises: the intensity of radiation provided by the first radiation source is greater when the print head is moved in the first scanning direction than when the print head is moved in the second scanning direction.

In one embodiment, the control module 1003 is configured to control the print head to move at a constant speed at a preset speed when the print head is in the printing area of the 3D model; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, and the second radiation source is controlled to provide radiation with a second preset intensity.

In one embodiment, the control module 1003 is configured to control the printhead to decelerate to a velocity of 0 after the printhead moves out of the printing region of the 3D model; in the first printing mode, controlling the first radiation source to provide radiation with a third preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a third preset intensity, and controlling the second radiation source to provide radiation with a fourth preset intensity; the third preset intensity is smaller than the first preset intensity, and the fourth preset intensity is smaller than the second preset intensity.

In one embodiment, the control module 1003 is configured to, after the print head moves out of the printing area of the 3D model, control the print head to move to a speed of 0 at a reduced speed; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, the second radiation source is controlled to provide radiation with a second preset intensity, and the deceleration of the first radiation source is smaller than that of the second radiation source.

In an embodiment, the control module 1003 is configured to, in the first printing mode and in the first scanning direction, control the first radiation source to pass through the printing area at a constant speed and provide radiation of a first preset intensity when the first radiation source is in the printing area of the 3D model; in a second printing mode, in a first scanning direction, when a first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with first preset intensity; and in a second scanning direction, when the second radiation source is in the printing area of the 3D model, controlling the second radiation source to pass through the printing area at a constant speed and providing radiation with a second preset intensity.

In one embodiment, the control module 1003 is configured to, when the printhead decelerates to 0 and before the printhead enters the printing area of the 3D model, control the printhead to accelerate to a preset speed in an opposite direction and move at a constant speed at the preset speed; in the first printing mode, the first radiation source is controlled to provide radiation with a first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with the first preset intensity, and the second radiation source is controlled to provide radiation with a second preset intensity.

The implementation manner and principle of the control device of the 3D inkjet printing apparatus provided in the embodiment of the present application may refer to the description in the control method of the aforementioned 3D inkjet printing apparatus, and are not repeated.

It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can all be implemented in the form of software invoked by a processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. The processing element may be a separate processing element, or may be integrated into a chip of the apparatus, or may be stored in the memory of the apparatus in the form of program code, and a processing element of the apparatus may call and execute the functions of the above determination module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element calling program code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, the steps performed by the control device may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

The application also provides an electronic device comprising a processor and a memory. The processor and the memory are communicatively coupled. Wherein the memory has stored therein a computer program. When the processor executes the computer program, the processor may perform the steps of the control method as performed by the control device in any of the previous embodiments of the present application.

The present application also provides a computer readable storage medium storing computer instructions, which when executed, can be used to execute the steps of the control method executed by the control device in any one of the previous embodiments of the present application.

The embodiment of the present application further provides a chip for executing the instruction, where the chip is configured to execute the steps of the control method executed by the control device according to any one of the foregoing embodiments of the present application.

Embodiments of the present application further provide a computer program product, where the program product includes a computer program stored in a storage medium, and the computer program can be read by at least one processor from the storage medium, and when the computer program is executed by the at least one processor, the at least one processor can implement the steps of the control method executed by the control device according to any one of the foregoing embodiments of the present application.

In an embodiment, the control device provided in the embodiments of the present application may be any one of a Pulse-width modulation (PWM) controller, a Central Processing Unit (CPU), another general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an existing programmable gate array (FPGA), or other programmable logic device, discrete gate, and transistor logic device.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; the storage medium includes various media that can store program codes, such as ROM, magnetic disk, or optical disk.

Those of ordinary skill in the art will understand that: for convenience of explaining the technical solution of the present application, the functional modules in the embodiments of the present application are described separately, and circuit devices in the respective modules may partially or completely overlap, which is not intended to limit the scope of the present application.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (27)

1. A control method of a 3D inkjet printing apparatus, the 3D inkjet printing apparatus comprising: the device comprises a control device, a printing head, a first radiation source and a second radiation source, wherein the first radiation source and the second radiation source are respectively positioned on two sides of the printing head; the control apparatus is configured to execute the control method, and the control method includes:

determining a printing mode of a 3D model to be printed; the printing mode is one of a first printing mode and a second printing mode, and the radiation source control parameters of the first printing mode and the second printing mode are different;

determining printing data of the 3D model according to the model data of the 3D model;

and in the printing mode, controlling the 3D ink-jet printing equipment to print the 3D model based on the printing data.

2. The control method according to claim 1, wherein the determining a printing mode of the 3D model to be printed comprises:

obtaining model data of the 3D model;

and determining the printing mode of the 3D model to be printed according to the model data of the 3D model.

3. The control method according to claim 1, wherein the determining a printing mode of the 3D model to be printed comprises:

and receiving the printing mode of the 3D model to be printed, which is determined by the user according to the model data of the 3D model, through an operation interface.

4. The control method according to any one of claims 1 to 3,

the model data includes: at least one of format information of the data, structure information of the model, and color information of the model.

5. A control method according to any one of claims 1-3, wherein the radiation source control parameter is used to control one of the first and second radiation sources to provide radiation in the first printing mode or to control the first and second radiation sources to provide radiation in the second printing mode.

6. The control method according to claim 5,

the 3D inkjet printing device further comprises a leveling component, wherein the first radiation source, the leveling component, the printing head and the second radiation source are sequentially arranged in a first scanning direction;

the first printing mode comprises: the first radiation source provides radiation and the second radiation source does not provide radiation when the print head moves in the first scanning direction; when the printing head moves towards a second scanning direction, the first radiation source and the second radiation source do not provide radiation;

the second printing mode includes: the first radiation source provides radiation as the print head moves in a first scanning direction; the second radiation source provides radiation as the print head moves toward a second scan direction; wherein the first scanning direction and the second scanning direction are opposite to each other.

7. The control method according to claim 6,

the second printing mode further comprises: the intensity of radiation provided by the first radiation source when the print head is moved in a first scanning direction is greater than the intensity of radiation provided by the second radiation source when the print head is moved in a second scanning direction.

8. The control method according to claim 6, wherein the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data in the print mode includes:

when the printing head is in the printing area of the 3D model, controlling the printing head to move at a preset speed at a constant speed;

and in the first printing mode, controlling the first radiation source to provide radiation with a first preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a first preset intensity and controlling the second radiation source to provide radiation with a second preset intensity.

9. The method according to claim 8, wherein the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data in the print mode further comprises:

when the printing head moves out of the printing area of the 3D model, controlling the printing head to move in a deceleration mode until the speed is 0;

in the first printing mode, controlling the first radiation source to provide radiation with a third preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a third preset intensity and controlling the second radiation source to provide radiation with a fourth preset intensity;

the third preset intensity is smaller than the first preset intensity, and the fourth preset intensity is smaller than the second preset intensity.

10. The method according to claim 8, wherein the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data in the print mode further comprises:

when the printing head moves out of the printing area of the 3D model, controlling the printing head to decelerate to a speed of 0;

under the first printing mode, control the first radiation source provide radiation of first preset intensity, or under the second printing mode, control the first radiation source provide radiation of first preset intensity, control the second radiation source provide radiation of second preset intensity, and the deceleration of first radiation source is less than the deceleration of second radiation source.

11. The control method according to claim 6, wherein the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data in the print mode includes:

in the first printing mode, in a first scanning direction, when the first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with a first preset intensity;

in the second printing mode, in a first scanning direction, when the first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with a first preset intensity; and in a second scanning direction, when the second radiation source is in the printing area of the 3D model, controlling the second radiation source to pass through the printing area at a constant speed and providing radiation with a second preset intensity.

12. The method according to any one of claims 8 to 11, wherein the controlling the 3D inkjet printing apparatus to print the 3D model based on the print data in the print mode further comprises:

when the speed of the printing head is reduced to 0 and before the printing head enters a printing area of the 3D model, controlling the printing head to accelerate to the preset speed in the opposite direction and move at the preset speed at a constant speed;

and in the first printing mode, controlling the first radiation source to provide radiation with a first preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a first preset intensity and controlling the second radiation source to provide radiation with a second preset intensity.

13. A3D inkjet printing apparatus, comprising:

a print head, a first radiation source, a second radiation source and a control device;

the first radiation source and the second radiation source are respectively positioned on two sides of the printing head;

the control device is adapted to perform the control method according to any one of claims 1-12.

14. A control device of a 3D inkjet printing apparatus, characterized by comprising:

the device comprises a first determining module, a second determining module and a printing module, wherein the first determining module is used for determining a printing mode of a 3D model to be printed; the printing mode is one of a first printing mode and a second printing mode, and the radiation source control parameters of the first printing mode and the second printing mode are different;

the second determining module is used for determining the printing data of the 3D model according to the model data of the 3D model;

and the control module is used for controlling the 3D ink-jet printing equipment to print the 3D model based on the printing data in the printing mode.

15. The control device of claim 14, wherein the first determination module is configured to,

acquiring model data of the 3D model;

and determining the printing mode of the 3D model to be printed according to the model data of the 3D model.

16. The control apparatus of claim 14, wherein the first determination module is configured to,

and receiving the printing mode of the 3D model to be printed, which is determined by the user according to the model data of the 3D model, through an operation interface.

17. The control device according to any one of claims 14 to 16,

the model data includes: at least one of format information of the data, structure information of the model, and color information of the model.

18. The control device according to any one of claims 14 to 16,

the radiation source control parameter is for controlling one of the first and second radiation sources to provide radiation in the first printing mode or for controlling the first and second radiation sources to provide radiation in the second printing mode.

19. The control device according to claim 18,

the 3D inkjet printing device further comprises a leveling component, wherein the first radiation source, the leveling component, the printing head and the second radiation source are sequentially arranged in a first scanning direction;

the first printing mode comprises: the first radiation source provides radiation and the second radiation source does not provide radiation when the print head moves in the first scanning direction; when the printing head moves towards a second scanning direction, the first radiation source and the second radiation source do not provide radiation;

the second printing mode includes: the first radiation source provides radiation as the print head moves in a first scan direction; the second radiation source provides radiation as the print head moves toward a second scan direction; wherein the first scanning direction and the second scanning direction are opposite to each other.

20. The control device according to claim 19,

the second printing mode further comprises: the intensity of radiation provided by the first radiation source when the print head is moved in a first scanning direction is greater than the intensity of radiation provided by the second radiation source when the print head is moved in a second scanning direction.

21. The control device of claim 19, wherein the control module is configured to,

when the printing head is in the printing area of the 3D model, controlling the printing head to move at a preset speed at a constant speed;

in the first printing mode, the first radiation source is controlled to provide radiation with first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with first preset intensity, and the second radiation source is controlled to provide radiation with second preset intensity.

22. The control apparatus of claim 21, wherein the control module is configured to,

when the printing head moves out of the printing area of the 3D model, controlling the printing head to decelerate to a speed of 0;

in the first printing mode, controlling the first radiation source to provide radiation with a third preset intensity, or in the second printing mode, controlling the first radiation source to provide radiation with a third preset intensity and controlling the second radiation source to provide radiation with a fourth preset intensity;

the third preset intensity is smaller than the first preset intensity, and the fourth preset intensity is smaller than the second preset intensity.

23. The control device of claim 21, wherein the control module is configured to,

when the printing head moves out of the printing area of the 3D model, controlling the printing head to decelerate to a speed of 0;

under the first printing mode, the first radiation source is controlled to provide radiation with first preset intensity, or under the second printing mode, the first radiation source is controlled to provide radiation with first preset intensity, the second radiation source is controlled to provide radiation with second preset intensity, and the deceleration of the first radiation source is smaller than that of the second radiation source.

24. The control device of claim 19, wherein the control module is configured to,

in the first printing mode, in a first scanning direction, when the first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with a first preset intensity;

in the second printing mode, in a first scanning direction, when the first radiation source is in a printing area of the 3D model, controlling the first radiation source to pass through the printing area at a constant speed and providing radiation with a first preset intensity; and in a second scanning direction, when the second radiation source is in a printing area of the 3D model, controlling the second radiation source to pass through the printing area at a constant speed and providing radiation with a second preset intensity.

25. The control device of any one of claims 19-24, wherein the control module is configured to,

when the speed of the printing head is reduced to 0 and before the printing head enters a printing area of the 3D model, controlling the printing head to accelerate to the preset speed in the opposite direction and move at the preset speed at a constant speed;

in the first printing mode, the first radiation source is controlled to provide radiation with first preset intensity, or in the second printing mode, the first radiation source is controlled to provide radiation with first preset intensity, and the second radiation source is controlled to provide radiation with second preset intensity.

26. An electronic device, comprising: a processor and a memory communicatively coupled; wherein the memory has stored therein a computer program which, when executed by the processor, performs the method of any one of claims 1-12.

27. A storage medium having stored thereon computer instructions which, when executed by a computer, cause the computer to perform the method of any one of claims 1-12.

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