Methods, apparatus, equipment and storage media for printing and curing with tilting nozzles

Abstract

This invention discloses a printing curing method, apparatus, device, and storage medium for tilted printheads, relating to the field of inkjet printing technology. The method involves acquiring and calculating the tilt angle of the tilted printhead to obtain a first position of a first inkjet channel and a second position of a second inkjet channel. Based on the first and second positions, the inkjet range of the printhead on the printing medium is obtained to further determine the curing range of the curing assembly, and LEDs within the curing range are designated as working LEDs. Finally, the curing assembly is controlled to move along the scanning direction, and the working LEDs are controlled to perform photocuring on the ink on the printing medium. By adjusting the curing range according to the inkjet range of the tilted printhead, and only setting LEDs within the curing range to working state during the curing process, energy consumption during the tilted printhead printing curing process can be effectively reduced, achieving energy-saving and high-efficiency results to meet the increasingly diverse needs of the modern market.

Description

Technical Field

[0001] This invention relates to the field of inkjet printing technology, and in particular to a method, apparatus, device, and storage medium for printing and curing with a tilting printhead. Background Technology

[0002] In inkjet printing, ink needs to be quickly cured after being sprayed onto the printing medium to ensure the clarity and durability of the image or text. The curing process is the process of changing the ink from a liquid to a solid state, which is important for preventing ink from spreading and mixing on the printing medium and for improving the drying speed of the printed matter.

[0003] Early ink curing methods primarily relied on natural drying, depending on airflow and temperature changes to gradually dry the ink. However, this method was time-consuming, inefficient, and susceptible to environmental factors, leading to inconsistent print quality. With advancements in science and technology, various modern ink curing technologies have emerged. For example, ultraviolet (UV) curing technology uses ultraviolet light to irradiate the ink, triggering an internal chemical reaction that rapidly dries and cures the ink. This method offers advantages such as fast curing speed, high efficiency, and environmental friendliness, and has therefore been widely adopted in the inkjet printing field.

[0004] With the growth of digital technology and printing demands, the requirements for inkjet printing and curing are becoming increasingly stringent. For example, to improve the printing accuracy of the printhead in a specific direction, a technique can be used to tilt the printhead at a certain angle relative to the direction of movement of the printing medium. However, related technologies still rely on curing methods based on the normal printhead mounting state. This is inconsistent with the higher precision and efficiency goals pursued by tilted printhead technology, resulting in problems such as high energy consumption during the curing process, making it difficult to meet the increasingly diverse needs of the modern market. Summary of the Invention

[0005] In view of this, the present invention provides a printing curing method, apparatus, device and storage medium for tilted nozzles, in order to solve the problem of high energy consumption in printing curing with tilted nozzles in the prior art.

[0006] The technical solution adopted in this invention is:

[0007] In a first aspect, the present invention provides a printing and curing method using a tilted printhead, applied to a curing assembly, the curing assembly including a plurality of LEDs, the tilted printhead including at least a first inkjet channel and a second inkjet channel, the method comprising:

[0008] Obtain the tilt angle of the tilted nozzle; wherein, the tilt angle is the tilt angle of the tilted nozzle relative to the scanning direction of the printing medium;

[0009] The first position of the first inkjet channel and the second position of the second inkjet channel are obtained based on the tilt angle.

[0010] The ink jet range of the tilted printhead on the printing medium is obtained based on the first position and the second position;

[0011] The curing range of the curing component is obtained based on the inkjet range, and the LEDs within the curing range are used as working LEDs.

[0012] The curing component is controlled to move in the scanning direction, and the working LED beads are controlled to perform photocuring on the ink on the printing medium.

[0013] In some embodiments, before obtaining the tilt angle of the tilting nozzle, the method further includes:

[0014] A Cartesian coordinate system is established with the lower left corner of the initial position of the tilted printhead as the origin and the scanning direction as the positive X-axis. In the initial position, each inkjet channel is arranged from left to right in the scanning direction, and the arrangement direction of a row of nozzles in the inkjet channel is the nozzle row direction, which is the same as the Y-axis direction of the Cartesian coordinate system.

[0015] The tilting nozzle is rotated at the origin by the tilt angle about an axis that is perpendicular to both the scanning direction and the nozzle array direction; wherein the nozzle array direction rotates by the tilt angle along with the tilting nozzle.

[0016] In some embodiments, obtaining the first position of the first inkjet channel and the second position of the second inkjet channel based on the tilt angle includes:

[0017] Obtain the first initial position of the first inkjet channel when it is in the initial position; wherein, the first initial position is the coordinate position of the first nozzle in the first inkjet channel;

[0018] The first position is obtained by calculating based on the tilt angle and the first initial position;

[0019] Obtain the second initial position of the second inkjet channel when it is in the initial position; wherein, the second initial position is the coordinate position of the last nozzle in the second inkjet channel;

[0020] The second position is obtained by calculating based on the tilt angle and the second initial position.

[0021] In some embodiments, the method further comprises:

[0022] The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is calculated based on the tilt angle;

[0023] Obtain the first illumination power of the overlapping region and the second illumination power of the non-overlapping region; wherein, the first illumination power is greater than the second illumination power, and the non-overlapping region is the region in the inkjet channel excluding the overlapping region;

[0024] The working LED beads are controlled to perform photocuring on the ink on the printing medium based on the first light power and the second light power.

[0025] In some embodiments, the inkjet channel includes at least one row of nozzles; calculating the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the tilt angle includes:

[0026] Obtain the distance parameter between the first inkjet channel and the second inkjet channel;

[0027] Obtain the total length parameter of a row of nozzles in the inkjet channel;

[0028] The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained by calculating based on the distance parameter, the total length parameter and the tilt angle.

[0029] In some embodiments, calculating the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the distance parameter, the total length parameter, and the tilt angle includes:

[0030] The non-overlapping parameters of the first inkjet channel and the second inkjet channel are calculated based on the distance parameter and the tilt angle.

[0031] Subtracting the non-overlapping parameter from the total length parameter yields the overlap parameter between the first inkjet channel and the second inkjet channel.

[0032] Based on the overlap parameter, the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained.

[0033] In some embodiments, the tilting printhead further includes a third inkjet channel, and the method further includes:

[0034] The first position of the first inkjet channel and the third position of the third inkjet channel are obtained based on the tilt angle.

[0035] The target inkjet range of the tilted printhead on the printing medium is obtained based on the first position and the third position.

[0036] The target curing range of the curing component is obtained based on the target inkjet range, and the LEDs within the target curing range are used as target working LEDs.

[0037] The curing component is controlled to move in the scanning direction, and the target working LED is controlled to perform photocuring on the ink on the printing medium.

[0038] In a second aspect, the present invention provides a printing and curing assembly with an inclined nozzle, the device comprising:

[0039] The acquisition module is used to acquire the tilt angle of the tilted nozzle; wherein, the tilt angle is the tilt angle of the tilted nozzle relative to the scanning direction of the printing medium;

[0040] The position module is used to obtain the first position of the first inkjet channel and the second position of the second inkjet channel according to the tilt angle;

[0041] The inkjet module is used to obtain the inkjet range of the tilted printhead on the printing medium based on the first position and the second position;

[0042] A curing module is used to obtain the curing range of the curing component based on the inkjet range, and to use the LEDs within the curing range as working LEDs;

[0043] The control module is used to control the curing component to move in the scanning direction and to control the working lamp beads to perform photocuring on the ink on the printing medium.

[0044] Thirdly, embodiments of the present invention also provide an electronic device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method of the first aspect described above.

[0045] Fourthly, embodiments of the present invention also provide a storage medium storing computer program instructions thereon, which, when executed by a processor, implement the method of the first aspect described above.

[0046] In summary, the beneficial effects of the present invention are as follows:

[0047] This invention provides a method, apparatus, device, and storage medium for printing and curing with a tilting printhead. The tilting printhead includes at least a first inkjet channel and a second inkjet channel. The method is applied to a curing assembly including multiple LEDs. First, the tilt angle of the tilting printhead is obtained. Then, based on the tilt angle, a first position of the first inkjet channel and a second position of the second inkjet channel are calculated. The inkjet range of the tilting printhead on the printing medium is obtained based on the first and second positions. The curing range of the curing assembly is further determined by the inkjet range, and LEDs within the curing range are designated as working LEDs. Finally, the curing assembly is controlled to move along the scanning direction with the tilting printhead. After the tilting printhead performs inkjet printing on the printing medium, the working LEDs are controlled to perform photocuring on the ink on the printing medium. Thus, the curing range of the curing assembly is adjusted according to the inkjet range of the tilting printhead. LEDs within the curing range are set to a working state during curing, while LEDs outside the curing range are set to a closed state. This effectively reduces energy consumption during the printing and curing process of the tilting printhead, achieving energy-saving and high-efficiency results to meet the increasingly diverse needs of the modern market. Attached Figure Description

[0048] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0049] Figure 1 This is a schematic flowchart of the printing and curing method using an inclined nozzle in Embodiment 1 of the present invention;

[0050] Figure 2 yes Figure 1 A flowchart illustrating the process prior to step S101.

[0051] Figure 3 This is a schematic diagram of an inclined nozzle provided in an embodiment of the present invention;

[0052] Figure 4 yes Figure 1 A flowchart illustrating step S102;

[0053] Figure 5 This is a schematic flowchart of another inclined nozzle printing and curing method provided in an embodiment of the present invention;

[0054] Figure 6 This is a schematic diagram of another tilting nozzle provided in an embodiment of the present invention;

[0055] Figure 7 yes Figure 5 A flowchart illustrating step S401;

[0056] Figure 8 yes Figure 7 A flowchart illustrating step S503;

[0057] Figure 9 This is another schematic diagram of an inclined nozzle provided in an embodiment of the present invention;

[0058] Figure 10 This is a schematic flowchart of another inclined nozzle printing and curing method provided in an embodiment of the present invention;

[0059] Figure 11 This is a structural block diagram of Embodiment 2 of the present invention;

[0060] Figure 12 This is a schematic diagram of the electronic device in Embodiment 3 of the present invention. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, the element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Where there is no conflict, embodiments of the present invention and the various features thereof can be combined with each other, all of which are within the scope of protection of the present invention.

[0062] In inkjet printing, ink needs to be quickly cured after being sprayed onto the printing medium to ensure the clarity and durability of the image or text. The curing process is the process of changing the ink from a liquid to a solid state, which is important for preventing ink from spreading and mixing on the printing medium and for improving the drying speed of the printed matter.

[0063] With the growth of digital technology and printing demands, the requirements for inkjet printing and curing are becoming increasingly stringent. For example, to improve the printing accuracy of the printhead in a specific direction, a technique can be used to tilt the printhead at a certain angle relative to the direction of movement of the printing media. However, related technologies still rely on curing methods based on the normal printhead mounting state, resulting in a discrepancy between the curing range and the actual inkjet range. This is inconsistent with the higher precision and efficiency goals pursued by tilted printhead technology, leading to problems such as high energy consumption during the curing process, and making it difficult to meet the increasingly diverse needs of the modern market.

[0064] Based on this, embodiments of the present invention provide a printing curing method, apparatus, electronic device, and storage medium for tilted printheads. The curing range of the curing components can be adjusted according to the ink jet range of the tilted printhead. LEDs within the curing range are set to the working state during the curing process, while LEDs outside the curing range are set to the off state. This can effectively reduce energy consumption during the printing curing process of the tilted printhead, achieving energy-saving and high-efficiency results to meet the increasingly diverse needs of the modern market.

[0065] This application provides a printing and curing method, apparatus, electronic device, and storage medium for tilting nozzles, which are specifically described through the following embodiments.

[0066] Example 1

[0067] Please see Figure 1 , Figure 1 This is an optional flowchart of the printing and curing method using a tilted nozzle provided in an embodiment of the present invention. Figure 1 The method may include, but is not limited to, steps S101 to S105. It is also understood that this embodiment... Figure 1 The order of steps S101 to S105 is not specifically limited, and the order of steps can be adjusted or some steps can be reduced or added according to actual needs.

[0068] Step S101: Obtain the tilt angle of the tilt nozzle.

[0069] In some embodiments, the tilt angle is the tilt angle of the tilted printhead relative to the scanning direction of the printing media. Specifically, the scanning direction of the tilted printhead on the printing media is horizontal from left to right, and the scanning direction remains unchanged even if the tilt angles of different tilted printheads are different. It is understood that the tilt angle ensures the accuracy of the basic data for subsequent calculations, providing a reliable basis for obtaining the inkjet range and curing range.

[0070] It is understandable that the tilting nozzle printing curing method is applied in the curing assembly, which is an important part of the printing system and is responsible for curing the printing material onto the printing medium. Specifically, in a curing lamp containing multiple LEDs, the LEDs can be arranged in one or more rows to provide uniform and sufficient curing energy; this embodiment does not impose any limitations on this.

[0071] In some embodiments, the preset tilt angle ranges from 45° to 70°, allowing for clockwise or counterclockwise tilting during installation. Preferably, the preset tilt angle is 60° counterclockwise during installation, but this embodiment does not impose any limitation on this.

[0072] In some embodiments, it is possible to install the printhead at different preset tilt angles for different printing tasks to achieve optimal printing accuracy, nozzle utilization, and printing efficiency. Specifically, obtaining the actual tilt angle of the printing task may include, but is not limited to, the following steps:

[0073] S110: Determine the range of inkjet printhead rotation angle based on the data accuracy of the printing task.

[0074] In some embodiments, different printing tasks have different requirements for the data accuracy of the printed image. For printing tasks with lower data accuracy requirements, the rotation angle range of the inkjet printhead can be smaller, thereby maximizing nozzle utilization and printing efficiency while ensuring printing accuracy. Conversely, for printing tasks with higher data accuracy requirements, the rotation angle range of the inkjet printhead needs to be larger to ensure that the printed image meets the printing accuracy requirements. It is understood that the rotation angle range can be set by those skilled in the art according to actual needs or obtained by establishing a mapping relationship, and this embodiment does not limit this.

[0075] S120: Determine the actual tilt angle within the rotation angle range based on the priority parameters of the print job.

[0076] In some embodiments, the priority parameters for a print job may include, but are not limited to, print accuracy, print efficiency, and print error. Specifically, the actual tilt angle is calculated using the following formula:

[0077] M=w1·Precision+w2·Efficiency-w3·Error

[0078] Where M is the (optimal) actual tilt angle, Precision is the printing precision, Efficiency is the printing efficiency, and Error is the printing error (such as overlap area deviation and / or step error); w1, w2 and w3 correspond to the weights of each priority parameter. The values ​​of each weight can be adjusted according to task requirements, and this embodiment does not impose any restrictions on this.

[0079] Step S102: Obtain the first position of the first inkjet channel and the second position of the second inkjet channel based on the tilt angle.

[0080] In some embodiments, the tilting printhead includes at least a first inkjet channel and a second inkjet channel. The tilt angle can be used to calculate and obtain a first position corresponding to the first inkjet channel and a second position corresponding to the second inkjet channel. The position information can be represented in coordinate form to accurately reflect the actual layout of the inkjet channels in the tilted state.

[0081] Step S103: Obtain the ink jet range of the tilted printhead on the printing medium based on the first position and the second position.

[0082] In some embodiments, the inkjet range of a single scan of the printing medium by the tilting printhead can be obtained based on the first position and the second position. For example, when the first position is at the upper right corner and the second position is at the lower left corner, a quadrilateral inkjet area can be formed with the first and second positions as opposite vertices. It is understood that, referring to... Figure 3 As shown, since the tilting printhead moves from left to right along the scanning direction, it is only necessary to determine the upper and lower boundaries of the target inkjet range. This embodiment does not impose any restrictions on this.

[0083] Step S104: Obtain the curing range of the curing component based on the inkjet range, and use the LEDs within the curing range as working LEDs.

[0084] In some embodiments, the curing range of the curing component is further determined based on the inkjet range. When the inkjet range of the tilted printhead is smaller than that of the normal printhead, the curing range will correspondingly decrease in size; conversely, when the inkjet range of the tilted printhead is larger than that of the normal printhead, the curing range will correspondingly increase in size. Then, the LEDs within the curing range are designated as working LEDs. These working LEDs are active during the curing process, while LEDs outside the curing range remain off. By precisely controlling the range of the working LEDs, energy consumption can be significantly reduced while ensuring the consistency and stability of the curing effect.

[0085] Step S105: Control the curing component to move in the scanning direction and control the working lamp beads to light-cur the ink on the printing medium.

[0086] In some embodiments, reference Figure 3 As shown, the curing assembly is installed behind the tilted printhead. As the tilted printhead moves from left to right along the scanning direction at an angle, the curing assembly moves synchronously. During this process, the working LEDs continuously irradiate the ink on the printing medium, triggering a UV curing reaction that rapidly dries and sets the ink. To ensure curing quality, the movement speed of the curing assembly should match the printing speed of the printhead. Simultaneously, the light intensity and duration of the working LEDs can be adjusted appropriately based on the specific ink type and printing requirements. If the curing assembly includes multiple rows of LEDs, the light intensity of each row can be dynamically adjusted according to the printhead's tilt angle and ink jet distribution to achieve optimal curing results. It is understood that those skilled in the art can configure this according to actual needs, and this embodiment does not impose any limitations on this.

[0087] Reference Figure 2 As shown, in some embodiments of this application, before step S101: obtaining the tilt angle of the tilt nozzle, the steps S201 to S202 may be included, but are not limited to.

[0088] Step S201: Establish a Cartesian coordinate system with the lower left corner of the initial position of the tilted nozzle as the origin and the scanning direction as the positive X-axis.

[0089] In some embodiments, the initial position refers to the position of the printhead when it is normally installed. A Cartesian coordinate system is established with the lower left corner of the initial position of the tilted printhead as the origin and the scanning direction as the positive X-axis. Specifically, in the initial position, the inkjet channels in the printhead are arranged from left to right along the scanning direction, and the arrangement direction of a row of nozzles in the inkjet channel is the nozzle column direction, which is the same as the Y-axis direction of the Cartesian coordinate system. It is understood that each inkjet channel includes at least one row of nozzles.

[0090] Step S202: Rotate the tilting nozzle at the origin with an axis perpendicular to both the scanning direction and the nozzle array direction.

[0091] In some embodiments, an axis perpendicular to both the scanning direction and the nozzle array direction is selected as the rotation axis. (Refer to...) Figure 3 As shown, the tilted printhead is rotated at the origin around the pivot point by a tilt angle θ, placing the printhead in a tilted position. It can be understood that in the tilted position, the inkjet channels in the printhead are arranged in a tilted manner from bottom to top, for example, the first inkjet channel A is above the second inkjet channel B, and the direction of the nozzle array also tilts accordingly as the printhead rotates.

[0092] Reference Figure 4As shown, in some embodiments of this application, the above step S102, obtaining the first position of the first inkjet channel and the second position of the second inkjet channel according to the tilt angle, may also include, but is not limited to, the following steps S301 to S304.

[0093] Step S301: Obtain the first initial position of the first inkjet channel when it is in the initial position.

[0094] In some embodiments, the first initial position of the first inkjet channel when it is in an initial position is obtained, and the first initial position can be denoted as (x1, y1). Specifically, refer to... Figure 3 As shown, when the tilted printhead is installed at a counterclockwise tilt angle θ, the first initial position is the coordinate position of the first nozzle a in the first inkjet channel A at the initial position.

[0095] Step S302: Calculate the first position based on the tilt angle and the first initial position.

[0096] In some embodiments, the first position corresponding to the first nozzle a in the first inkjet channel A after the tilted printhead is installed at an angle can be calculated based on the tilt angle θ and the first initial position (x1, y1). The first position can be denoted as (x1', y1'). Where: x1' = x1·cos(θ) - y1·sin(θ), y1' = x1·sin(θ) + y1·cos(θ).

[0097] Step S303: Obtain the second initial position of the second inkjet channel when it is in the initial position.

[0098] In some embodiments, a second initial position is obtained when the second inkjet channel is in its initial position, and this second initial position can be denoted as (x2, y2). Specifically, refer to... Figure 3 As shown, when the tilted printhead is installed at a counterclockwise tilt angle θ, the second initial position is the coordinate position of the last nozzle b in the second inkjet channel B at the initial position.

[0099] Step S304: Calculate the second position based on the tilt angle and the second initial position.

[0100] In some embodiments, the second position corresponding to the last nozzle b in the second inkjet channel B after the tilted printhead is installed at an angle can be calculated based on the tilt angle θ and the second initial position (x2, y2). The second position can be denoted as (x2', y2'). Where: x2' = x2·cos(θ) - y2·sin(θ), y2' = x2·sin(θ) + y2·cos(θ).

[0101] In some embodiments, the tilting printhead can also be installed at a clockwise tilt angle θ. Correspondingly, the first initial position is the coordinate position of the first nozzle b' in the second inkjet channel B at its initial position, and the second initial position is the coordinate position of the last nozzle a' in the first inkjet channel A at its initial position. It is understood that those skilled in the art can set the first and second initial positions according to actual needs, as long as it is ensured that the maximum range of points is obtained during one scan of the tilting printhead. This embodiment does not impose any limitations on this.

[0102] In some embodiments of this application, the curing lamp includes at least one row of LEDs, and the inkjet range of the tilted printhead is obtained based on the ordinate of a first position and the ordinate of a second position. Specifically, the range between the ordinate of the first position and the ordinate of the second position is directly used as the inkjet range, i.e., y1' to y2', thereby using LEDs in the curing lamp whose ordinates are within the range of y1' to y2' as working LEDs.

[0103] In summary, accurate nozzle position information provides the foundation for setting the working range of the subsequent curing assembly, ensuring that the curing assembly can cover all effective inkjet areas and improving curing efficiency. Furthermore, this method is applicable to different tilt angles and printhead designs, exhibiting good versatility and adaptability to meet diverse printing needs.

[0104] Reference Figure 5 As shown, in some embodiments of this application, the printing curing method of the tilted nozzle may also include, but is not limited to, the following steps S401 to S403.

[0105] Step S401: Calculate the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the tilt angle.

[0106] In some embodiments, the overlap area between different inkjet channels in the scanning direction can be calculated based on the tilt angle. (Refer to...) Figure 6 As shown, since the printhead is installed at an angle, the projections A' and B' of the first inkjet channel A and the second inkjet channel B in the scanning direction will not completely overlap, but will have a height difference, thus forming a certain overlapping area.

[0107] Step S402: Obtain the first illumination power of the overlapping region and the second illumination power of the non-overlapping region.

[0108] In some embodiments, a first illumination power for the overlapping area and a second illumination power for the non-overlapping area are obtained, wherein the first illumination power is greater than the second illumination power. Illumination power refers to the energy density of light emitted by the working LED on a unit area of ​​the printing medium, which determines the curing speed and curing quality of the ink.

[0109] Understandably, for overlapping areas, since ink is ejected from different inkjet channels within these areas, the ink volume is larger, requiring higher illumination power to ensure complete curing. For non-overlapping areas, i.e., the portions of the inkjet channels excluding the overlapping areas, lower illumination power can be used. Let's assume the first illumination power is P1 and the second is P2. The values ​​of P1 and P2 can be adjusted according to the specific ink type and printing requirements. P1 is greater than P2 to ensure rapid curing of the ink in the overlapping areas, avoiding quality issues caused by insufficient curing. Although P2 is less than P1, it is still sufficient to ensure complete curing of the ink in the non-overlapping areas. Lower illumination power helps reduce energy consumption and improve curing efficiency.

[0110] Step S403: Control the working lamp beads to perform photocuring on the ink on the printing medium according to the first light power and the second light power.

[0111] In some embodiments, the working LED beads are controlled to photocur the ink on the printing medium according to the first illumination power and the second illumination power. Furthermore, parameters such as the luminous intensity, luminous time, or luminous mode of the working LED beads can be adjusted according to the illumination requirements of overlapping and non-overlapping areas to ensure that the ink in the entire printing area is properly cured. This embodiment does not limit this.

[0112] This allows for the calculation of illumination requirements for overlapping and non-overlapping areas based on the tilt angle of the printhead and the position of the inkjet channels, and the control of the curing process of the working LEDs accordingly. This not only improves the accuracy and controllability of the printing curing process but also ensures uniform ink curing and high-quality printing results in the printing area, helping to reduce energy consumption and production costs, and improve overall production efficiency and economic benefits.

[0113] Reference Figure 7 As shown, in some embodiments of this application, the inkjet channel includes at least one row of nozzles. The above step S401: calculating the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction according to the tilt angle may also include, but is not limited to, the following steps S501 to S503.

[0114] Step S501: Obtain the distance parameter between the first inkjet channel and the second inkjet channel.

[0115] In some embodiments, the distance parameter between the first inkjet channel and the second inkjet channel is obtained. For a printhead including multiple inkjet channels, the distance parameter between two adjacent inkjet channels is obtained. Specifically, the distance parameter is the shortest straight-line distance between two adjacent inkjet channels. It can be understood that the distance parameters between each inkjet channel are the same, that is, the spacing between each inkjet channel in the inkjet printhead is set to the same distance.

[0116] Step S502: Obtain the total length parameter of a row of nozzles in the inkjet channel.

[0117] In some embodiments, the total length parameter of a row of nozzles in an inkjet channel is obtained. Specifically, this total length parameter refers to the total length of a row of nozzles along the nozzle column direction in an inkjet channel. For example, when the inkjet channel consists of 30 nozzles in a row, the total length parameter is the length value of the 30 nozzles.

[0118] Step S503: Calculate the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the distance parameter, total length parameter and tilt angle.

[0119] In some embodiments, the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is calculated based on a distance parameter, a total length parameter, and a preset tilt angle. Specifically, refer to... Figure 8 As shown, the steps may include, but are not limited to, steps S601 to S603.

[0120] Step S601: Calculate the non-overlapping parameters of the first inkjet channel and the second inkjet channel based on the distance parameter and tilt angle.

[0121] In some embodiments, the non-overlapping parameters between the first inkjet channel and the second inkjet channel can be obtained by calculating based on the distance parameter and the tangent of the tilt angle. Specifically, refer to... Figure 9 As shown, multiplying the distance parameter L1 by the tangent of the tilt angle tanθ, i.e., L1*tanθ, yields the non-overlapping parameter between the first inkjet channel A and the second inkjet channel B. It can be understood that when the second inkjet channel B moves along the scanning direction with the printhead, the non-overlapping parameter indicates the non-overlapping area between the nozzles of the second inkjet channel B and the first inkjet channel A.

[0122] Step S602: Subtract the non-overlapping parameter from the total length parameter to obtain the overlap parameter between the first inkjet channel and the second inkjet channel.

[0123] In some embodiments, reference Figure 9 As shown, subtracting the first non-overlapping parameter L1*tanθ from the total length parameter L2 yields the overlap parameter between the second inkjet channel B and the first inkjet channel A, i.e., L2-L1*tanθ. It can be understood that when the second inkjet channel B moves along the scanning direction with the inkjet printhead, the overlap parameter indicates the nozzle overlap area between the second inkjet channel B and the first inkjet channel A.

[0124] Step S603: Based on the overlap parameter, obtain the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction.

[0125] In some embodiments, specifically, referencing Figure 9 As shown, the overlap parameter corresponds to the overlapping area at the head of the second inkjet channel B and the overlapping area at the tail of the first inkjet channel A. The overlap parameter can be used to obtain the overlapping area of ​​the first and second inkjet channels in the scanning direction.

[0126] Therefore, by introducing distance and total length parameters and combining them with the tilt angle for calculation, the calculation of overlapping areas is made more accurate, avoiding curing quality problems caused by inaccurate estimation. This also provides a reliable basis for subsequent illumination power settings, ensuring that each area receives appropriate curing treatment and improving print quality. Furthermore, it is applicable to different printhead designs and tilt angles, exhibiting good versatility and adaptability to meet diverse printing needs.

[0127] Reference Figure 10 As shown, in some embodiments of this application, the tilted printhead further includes a third inkjet channel, and the inkjet printing method of the tilted printhead may also include, but is not limited to, the following steps S701 to S704.

[0128] Step S701: Obtain the first position of the first inkjet channel and the third position of the third inkjet channel based on the tilt angle.

[0129] In some embodiments, the first position of the first inkjet channel and the third position of the third inkjet channel are obtained based on the tilt angle. Similarly, the initial coordinates of each inkjet channel at its initial position can be determined first, and then a geometric transformation can be performed based on the tilt angle to obtain the new position after tilting. It is understood that when the tilted printhead includes multiple inkjet channels, only the positions of the first and last inkjet channels need to be obtained, with the positions of all intermediate inkjet channels located between these two channels. It is understood that when the tilted printhead has only one inkjet channel, the positions of the first and last nozzles within that inkjet channel only need to be obtained.

[0130] Step S702: Obtain the target inkjet range of the tilted printhead on the printing medium based on the first position and the third position.

[0131] In some embodiments, after obtaining the positions of the first and third inkjet channels, the target inkjet range of the tilting printhead on the printing medium can be determined based on these two positions. Specifically, the upper and lower boundaries of the target inkjet range are determined by the ordinates of the first and third positions. It is understood that since the tilting printhead moves from left to right along the scanning direction, it is only necessary to determine the upper and lower boundaries of the target inkjet range; this embodiment does not impose any limitations on this.

[0132] Step S703: Obtain the target curing range of the curing component based on the target inkjet range, and use the LEDs within the target curing range as the target working LEDs.

[0133] In some embodiments, the target curing range of the curing component is obtained based on the target inkjet range. The target curing range should completely cover the target inkjet range to ensure that all ink jetted onto the printing medium is fully cured. Assuming the target inkjet range is y1' to y3', the target curing range should also be y1' to y3'. Then, the LEDs within the target curing range are used as the target working LEDs. These target working LEDs are active during the curing process, while LEDs outside the target curing range remain off. By precisely controlling the range of the target working LEDs, energy consumption can be significantly reduced while ensuring the consistency and stability of the curing effect.

[0134] Step S704: Control the curing component to move in the scanning direction and control the target working lamp bead to perform photocuring on the ink on the printing medium.

[0135] In some embodiments, the curing assembly is mounted behind the tilted printhead. As the tilted printhead moves at an angle along the scanning direction, the curing assembly moves synchronously. During this process, the working LEDs continuously irradiate the ink on the printing medium, triggering a UV curing reaction that rapidly dries and sets the ink. To ensure curing quality, the movement speed of the curing assembly should match the printing speed of the printhead. The illumination intensity and duration of the working LEDs can also be adjusted appropriately based on the specific ink type and printing requirements. If the curing assembly includes multiple rows of LEDs, the illumination intensity of each row can be dynamically adjusted according to the printhead's tilt angle and ink jet distribution to achieve optimal curing results. It is understood that those skilled in the art can configure the curing assembly according to actual needs, and this embodiment does not impose any limitations on this.

[0136] Example 2

[0137] Please see Figure 11 Embodiment 2 of the present invention also provides a printing and curing assembly with an inclined nozzle, the device comprising:

[0138] The acquisition module is used to acquire the tilt angle of the tilted printhead; wherein, the tilt angle is the tilt angle of the tilted printhead relative to the scanning direction of the printing media.

[0139] The position module is used to obtain the first position of the first inkjet channel and the second position of the second inkjet channel according to the tilt angle.

[0140] Inkjet module, used to obtain the inkjet range of the tilted printhead on the printing medium based on the first position and the second position;

[0141] The curing module is used to obtain the curing range of the curing component based on the inkjet range, and to use the LEDs within the curing range as working LEDs;

[0142] The control module is used to control the movement of the curing component in the scanning direction and to control the working LED beads to light-cur the ink on the printing medium.

[0143] The specific implementation of the printing and curing component of the tilted nozzle in this embodiment is basically the same as the specific implementation of the printing and curing method of the tilted nozzle described above, and will not be repeated here.

[0144] Example 3

[0145] In addition, combined Figure 1 The printing and curing method using the tilted nozzle described in Embodiment 1 of the present invention can be implemented by an electronic device. Figure 12 A schematic diagram of the hardware structure of the electronic device provided in Embodiment 3 of the present invention is shown.

[0146] Electronic devices may include processors and memory storing computer program instructions.

[0147] Specifically, the processor may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement embodiments of the present invention.

[0148] The memory may include a large-capacity storage device for data or instructions. For example, and not limitingly, the memory may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk drive, a magneto-optical disk drive, magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory may include removable or non-removable (or fixed) media. Where appropriate, the memory may be internal or external to a data processing device. In a particular embodiment, the memory is a non-volatile solid-state memory. In a particular embodiment, the memory includes a read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0149] The processor reads and executes computer program instructions stored in the memory to implement any of the tilting nozzle printing and curing methods described in the above embodiments.

[0150] In one example, the electronic device may also include a communication interface and a bus. For example, Figure 12 As shown, the processor, memory, and communication interface are connected via a bus and communicate with each other.

[0151] The communication interface is mainly used to enable communication between various modules, devices, units and / or equipment in the embodiments of the present invention.

[0152] A bus, including hardware, software, or both, couples components of the device together. For example, and not limitingly, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, a bus may include one or more buses. While specific buses are described and illustrated in embodiments of the invention, the invention contemplates any suitable bus or interconnect.

[0153] Example 4

[0154] In addition, in conjunction with the tilting nozzle printing and curing method in Embodiment 1 above, Embodiment 4 of the present invention can also provide a computer-readable storage medium for implementation. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any one of the tilting nozzle printing and curing methods in the above embodiments.

[0155] In summary, the embodiments of the present invention provide a printing curing method, apparatus, device, and storage medium for a tilted nozzle.

[0156] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0157] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this invention are programs or code segments used to perform the required tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0158] It should also be noted that the exemplary embodiments mentioned in this invention describe methods or systems based on a series of steps or apparatus. However, this invention is not limited to the order of the steps described above; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0159] The above description is merely a specific embodiment of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A method for printing and curing with a tilted nozzle, characterized in that, Applied to a curing assembly, the curing assembly including multiple LEDs, the tilting printhead including at least a first inkjet channel and a second inkjet channel, the method includes: Obtain the tilt angle of the tilted nozzle; wherein, the tilt angle is the tilt angle of the tilted nozzle relative to the scanning direction of the printing medium; The first position of the first inkjet channel and the second position of the second inkjet channel are obtained based on the tilt angle. The ink jet range of the tilted printhead on the printing medium is obtained based on the first position and the second position; The curing range of the curing component is obtained based on the inkjet range, and the LEDs within the curing range are used as working LEDs. The curing component is controlled to move in the scanning direction, and the working LED beads are controlled to perform photocuring on the ink on the printing medium. The step of controlling the curing component to move along the scanning direction and controlling the working lamp bead to perform photocuring on the ink on the printing medium includes: calculating the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the tilt angle; Obtain the first illumination power of the overlapping region and the second illumination power of the non-overlapping region; wherein, the first illumination power is greater than the second illumination power, and the non-overlapping region is the region in the inkjet channel excluding the overlapping region; The working LED beads are controlled to perform photocuring on the ink on the printing medium based on the first light power and the second light power.

2. The printing and curing method using a tilting nozzle according to claim 1, characterized in that, Before obtaining the tilt angle of the tilting nozzle, the method further includes: A Cartesian coordinate system is established with the lower left corner of the initial position of the tilted printhead as the origin and the scanning direction as the positive X-axis. In the initial position, each inkjet channel is arranged from left to right in the scanning direction, and the arrangement direction of a row of nozzles in the inkjet channel is the nozzle column direction, which is the same as the Y-axis direction of the Cartesian coordinate system. The tilting nozzle is rotated at the origin by the tilt angle about an axis that is perpendicular to both the scanning direction and the nozzle array direction; wherein the nozzle array direction rotates by the tilt angle along with the tilting nozzle.

3. The printing and curing method using a tilting nozzle according to claim 1 or 2, characterized in that, The step of obtaining the first position of the first inkjet channel and the second position of the second inkjet channel based on the tilt angle includes: Obtain the first initial position of the first inkjet channel when it is in the initial position; wherein, the first initial position is the coordinate position of the first nozzle in the first inkjet channel; The first position is obtained by calculating based on the tilt angle and the first initial position; Obtain the second initial position of the second inkjet channel when it is in the initial position; wherein, the second initial position is the coordinate position of the last nozzle in the second inkjet channel; The second position is obtained by calculating based on the tilt angle and the second initial position.

4. The printing and curing method using a tilting nozzle according to claim 1, characterized in that, The inkjet channel includes at least one row of nozzles; the calculation of the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the tilt angle includes: Obtain the distance parameter between the first inkjet channel and the second inkjet channel; Obtain the total length parameter of a row of nozzles in the inkjet channel; The overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained by calculating based on the distance parameter, the total length parameter and the tilt angle.

5. The printing and curing method using a tilting nozzle according to claim 4, characterized in that, The calculation based on the distance parameter, the total length parameter, and the tilt angle to obtain the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction includes: The non-overlapping parameters of the first inkjet channel and the second inkjet channel are calculated based on the distance parameter and the tilt angle. Subtracting the non-overlapping parameter from the total length parameter yields the overlap parameter between the first inkjet channel and the second inkjet channel. Based on the overlap parameter, the overlap area of ​​the first inkjet channel and the second inkjet channel in the scanning direction is obtained.

6. The printing and curing method using a tilting nozzle according to any one of claims 1 to 2 or 4 to 5, characterized in that, The tilting printhead also includes a third inkjet channel, and the method further includes: The first position of the first inkjet channel and the third position of the third inkjet channel are obtained based on the tilt angle. The target inkjet range of the tilted printhead on the printing medium is obtained based on the first position and the third position. The target curing range of the curing component is obtained based on the target inkjet range, and the LEDs within the target curing range are used as target working LEDs. The curing component is controlled to move in the scanning direction, and the target working LED is controlled to perform photocuring on the ink on the printing medium.

7. A printing and curing device with an inclined nozzle, characterized in that, Applied to a curing assembly, the curing assembly including multiple LEDs, the tilting printhead including at least a first inkjet channel and a second inkjet channel, the device comprising: The acquisition module is used to acquire the tilt angle of the tilted nozzle; wherein, the tilt angle is the tilt angle of the tilted nozzle relative to the scanning direction of the printing medium; The position module is used to obtain the first position of the first inkjet channel and the second position of the second inkjet channel according to the tilt angle; The inkjet module is used to obtain the inkjet range of the tilted printhead on the printing medium based on the first position and the second position; A curing module is used to obtain the curing range of the curing component based on the inkjet range, and to use the LEDs within the curing range as working LEDs; The control module is used to control the curing component to move along the scanning direction and to control the working LEDs to perform photocuring on the ink on the printing medium. Specifically, it is used to: calculate the overlapping area of ​​the first inkjet channel and the second inkjet channel in the scanning direction based on the tilt angle; obtain the first illumination power of the overlapping area and the second illumination power of the non-overlapping area; wherein the first illumination power is greater than the second illumination power, and the non-overlapping area is the area in the inkjet channel excluding the overlapping area; and control the working LEDs to perform photocuring on the ink on the printing medium based on the first illumination power and the second illumination power.

8. An electronic device, characterized in that, include: At least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method as described in any one of claims 1-6.

9. A storage medium storing computer program instructions thereon, characterized in that, The method as described in any one of claims 1-6 is implemented when the computer program instructions are executed by the processor.

Images