Method, apparatus and equipment for dynamic control of light source curing for printing on cylindrical surfaces

Abstract

This invention belongs to the field of printing technology, specifically disclosing a method, apparatus, and device for dynamic control of light source curing in printing on cylindrical surfaces, to solve the technical problem of poor photocuring effect on cylindrical objects in existing technologies. The method includes: acquiring cylindrical object parameters and nozzle control parameters; acquiring the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters; and controlling each sub-light source of the light source to start working according to a preset rule when the nozzle and / or the cylindrical object enters the curing range, based on the movement speed of the nozzle and / or the cylindrical object. This invention achieves dynamic control of light source curing in printing on cylindrical surfaces, ensuring sufficient irradiation of the cylindrical surface, improving the ink curing effect, and extending the lifespan of the curing light source.

Description

Technical Field

[0001] This invention relates to the field of printing technology, and specifically to a method, apparatus, and equipment for dynamic control of light source curing in printing on the surface of cylindrical objects. Background Technology

[0002] A cylindrical inkjet printer is a device that uses inkjet technology to print patterns on cylindrical surfaces. Printed products include, but are not limited to: wine bottles, thermos cups, metal tubes, glass cups, paper cups, flexible materials, etc. During the printing process, the cylindrical object to be printed rotates at a constant angular velocity along the central axis of rotation, driven by the printer's roller shaft. Simultaneously, the printhead ejects ink onto the cylindrical surface of the object. To improve printing efficiency and product quality, the printed product is then cured by irradiation.

[0003] The curing light source of existing printing equipment is installed on the left and right sides or one side of the printhead. The light source is turned on for curing during the printing process. If the curing method of the existing equipment is used to irradiate and cure the cylinder, there is a problem of insufficient irradiation. In addition, the curing light source will be damaged due to poor heat dissipation if it is turned on for a long time. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a method, apparatus and equipment for dynamic control of light source curing for printing on the surface of cylindrical objects, in order to solve the technical problem of poor light curing effect on cylindrical objects in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a method for dynamic control of light source curing for printing on the surface of a cylindrical object, wherein the light source includes multiple individually controllable sub-light sources, characterized in that the method includes:

[0006] Obtain the cylindrical object parameters and nozzle control parameters;

[0007] The curing range of the light source is obtained based on the cylindrical object parameters and the nozzle control parameters;

[0008] When the nozzle and / or cylindrical object enter the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the movement speed of the nozzle and / or cylindrical object.

[0009] Preferably, the cylindrical object parameters include the cylindrical object's moving speed and initial position, and the nozzle control parameters include the nozzle's moving speed and initial position of the nozzle relative to the cylindrical object. Obtaining the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters includes:

[0010] The light source activation position and activation time are determined based on the column's moving speed, initial position, nozzle moving speed, and the nozzle's initial position relative to the column.

[0011] Obtain the curing time of the preset unit area;

[0012] The curing length of the light source is determined based on the moving speed of the cylindrical object, the moving speed of the nozzle, and the curing time per unit area.

[0013] The curing range is determined based on the light source's on-state and the light source's curing length.

[0014] Preferably, the cylindrical object parameters also include the cylindrical object rotation speed, and the preset unit area irradiation time is obtained by the ink curing time, the cylindrical object rotation speed, and the cylindrical object movement speed.

[0015] Preferably, the step of controlling each sub-light source of the light source to turn on and operate according to a preset rule based on the movement speed of the nozzle and / or column when the nozzle and / or column enters the curing range includes:

[0016] Obtain the ink volume based on the print data;

[0017] The output power of the light source is determined based on the amount of printing ink, wherein the output power of the light source is proportional to the amount of printing ink.

[0018] When the nozzle and / or column enter the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the moving speed of the column and / or the moving speed of the nozzle and the output power.

[0019] Preferably, the preset rules include:

[0020] When the nozzle moving speed is 0 and the cylindrical object moving speed is not 0, the sub-light sources within the curing range are sequentially activated according to the moving speed of the cylindrical object, starting from the sub-light source corresponding to the initial position of the nozzle relative to the cylindrical object at the time the light source is turned on.

[0021] When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light sources within the curing range are sequentially activated according to the nozzle moving speed, starting from the sub-light source corresponding to the initial position of the cylindrical object at the time the light source is turned on.

[0022] When both the nozzle moving speed and the cylindrical object moving speed are not zero, starting from the sub-light source corresponding to the light source activation position at the light source activation time, the sub-light sources within the curing range are activated sequentially according to the nozzle moving speed and the cylindrical object moving speed. The light source activation position is calculated using the following formula:

[0023] X3 = [(X2-X1) / (V1+V2)]V1+X1

[0024] Wherein, X3 is the light source turn-on position, V1 is the moving speed of the cylindrical object, V2 is the moving speed of the nozzle, X1 is the initial position of the cylindrical object, and X2 is the initial position of the nozzle relative to the cylindrical object.

[0025] Preferably, after controlling each sub-light source of the light source to start working according to a preset rule based on the movement speed of the nozzle and / or column when the nozzle and / or column enters the curing range, the method further includes:

[0026] When the nozzle and / or column completely leave the curing range, the sub-light source within the curing range is turned off according to a preset shutdown rule.

[0027] Preferably, controlling the sub-light source within the curing range to shut down according to a preset shut-off rule when the nozzle and / or cylindrical object completely leave the opening range includes:

[0028] When the nozzle moving speed is 0 and the cylindrical object moving speed is not 0, the sub-light source within the curing range is turned off after the cylindrical object has completely moved out of the curing range.

[0029] When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light source within the curing range is turned off after the nozzle has completely moved out of the curing range.

[0030] When both the nozzle moving speed and the cylindrical object moving speed are not zero, the sub-light source within the curing range is turned off after the nozzle and the cylindrical object have completely moved out of the curing range.

[0031] Secondly, embodiments of the present invention provide a dynamic control device for curing light source for printing on the surface of a cylindrical object, characterized in that the device comprises:

[0032] The parameter acquisition module is used to acquire cylindrical object parameters and nozzle control parameters;

[0033] The curing range determination module is used to obtain the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters;

[0034] The light source control module is used to control each sub-light source of the light source to start working according to preset rules based on the movement speed of the nozzle and / or column when the nozzle and / or column enters the curing range.

[0035] Thirdly, embodiments of the present invention provide a printing device, the printing device comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, wherein when the computer program instructions are executed by the processor, any of the methods described in the first aspect are implemented.

[0036] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer program instructions that, when executed by a processor, implement any of the methods described in the first aspect.

[0037] The present invention discloses a method, apparatus, and device for dynamic control of light source curing for printing on cylindrical surfaces. By acquiring cylindrical parameters and nozzle control parameters, the curing range of the light source is obtained based on the cylindrical parameters and nozzle control parameters. When the nozzle and / or the cylindrical object enters the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the movement speed of the nozzle and / or the cylindrical object. This achieves dynamic control of the curing light source, ensuring sufficient irradiation by the curing light source, improving the curing effect of the ink, and extending the lifespan of the curing light source. Attached Figure Description

[0038] 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.

[0039] Figure 1 This is a schematic diagram of the dynamic control process for light source curing of printing on the surface of a cylindrical object, provided by an embodiment of the present invention.

[0040] Figure 2a This is a schematic diagram of controlling the light source to turn on, provided by an embodiment of the present invention.

[0041] Figure 2b This is a schematic diagram of controlling the light source to turn on according to an embodiment of the present invention.

[0042] Figure 2c This is a schematic diagram of controlling the light source to turn on according to an embodiment of the present invention.

[0043] Figure 3a This is a schematic diagram of controlling the light source to turn off according to an embodiment of the present invention.

[0044] Figure 3b This is a schematic diagram of controlling the light source to turn off according to an embodiment of the present invention.

[0045] Figure 3c This is a schematic diagram of controlling the light source to turn off according to an embodiment of the present invention.

[0046] Figure 4 This is a schematic diagram of the structure of a dynamic control device for curing light source for printing on the surface of a cylindrical object, provided in an embodiment of the present invention.

[0047] Figure 5This is a schematic diagram of a dynamic control device for curing light source for printing on the surface of a cylindrical object, provided in an embodiment of the present invention. Detailed Implementation

[0048] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0049] 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, and do not necessarily require or imply any such actual relationship or order between these entities or operations. 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. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0050] It should be noted that the terms "left" and "right" in this application refer to a relative positional relationship.

[0051] Example 1

[0052] The cylindrical surface printer in this embodiment includes: a crossbeam, a printhead, a cylinder, a clamping device, and a light source. The printhead is mounted on the crossbeam, the cylindrical object is fixed on the axis by the clamping device, and the light source is mounted below the clamping device. The length of the light source is greater than or equal to the maximum length of the cylindrical object that can be clamped. The light source includes multiple individually controllable sub-light sources.

[0053] Please see Figure 1 An embodiment of the present invention provides a method for dynamic control of light source curing for printing on the surface of a cylindrical object, comprising the following steps:

[0054] S1: Obtain cylindrical object parameters and nozzle control parameters;

[0055] Specifically, the cylindrical object parameters and nozzle control parameters are first obtained. In one embodiment, the cylindrical object parameters include the cylindrical object moving speed and the initial position of the cylindrical object, and the nozzle control parameters include the nozzle moving speed and the initial position of the nozzle relative to the cylindrical object. The cylindrical object moving speed and the nozzle moving speed are obtained through a speed sensor. In another embodiment, the cylindrical object moving speed and the nozzle moving speed can be obtained by acquiring the displacement of the cylindrical object and the nozzle through a grating sensor, and then calculated.

[0056] S2: Obtain the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters;

[0057] In one embodiment, step S2 specifically includes:

[0058] S21: Determine the light source activation position and light source activation time based on the cylindrical object's moving speed, the cylindrical object's initial position, the nozzle's moving speed, and the nozzle's initial position relative to the cylindrical object;

[0059] Specifically, the light source activation position is calculated using the following formula:

[0060] X3 = [(X2-X1) / (V1+V2)]V1+X1

[0061] Wherein, V1 is the moving speed of the cylindrical object, V2 is the moving speed of the nozzle, X1 is the initial position of the cylindrical object, X2 is the initial position of the nozzle relative to the cylindrical object, and X3 is the on position of the light source; see also Figure 2a When the printhead is stationary and the cylindrical object moves to complete printing, printing can begin when the cylindrical object moves to the printhead's printing area, i.e., the initial position of the printhead relative to the cylindrical object. At this point, the light source is in the initial position of the printhead, i.e., X3 = X2; see also Figure 2b When the cylindrical object is stationary and the printhead moves to complete printing, printing can begin when the printhead reaches the initial position of the cylindrical object. At this point, the light source is turned on at the initial position of the cylindrical object, i.e., X3 = X1; see also Figure 2c To further improve printing efficiency, the relative movement of the printhead and the cylindrical object can be controlled simultaneously. When the cylindrical object and the printhead meet, printing can begin. At this time, the light source is turned on at the position where the printhead and the cylindrical object meet, which is calculated by the formula: X3=[(X2-X1) / (V1+V2)]V1+X1;

[0062] After determining the light source activation position, the light source activation time is calculated using the formula: t=(X2-X1) / (V1+V2), where t is the light source activation time.

[0063] Specifically, when the printhead is stationary and the cylindrical object moves to complete printing, the light source turns on at (X2-X1) / V1; when the cylindrical object is stationary and the printhead moves to complete printing, the light source turns on for a length of V2T, and the light source turns on at (X2-X1) / V2; when the cylindrical object and the printhead move towards each other to complete printing, the light source turns on at (X2-X1) / (V1+V2).

[0064] This invention controls the light source to turn on by calculating the light source's turn-on time, rather than using a grating sensor on the printer to read grating values ​​to determine the current position of the cylindrical object and / or printhead. The light source is turned on when the grating value of the cylindrical object and / or printhead is equal to the grating value corresponding to the light source's turn-on position. This avoids errors caused by grating sensor readings and data transmission time, enabling more precise control of the light source's turn-on and ensuring that the light source fully illuminates the cylindrical object, thus improving the ink curing effect.

[0065] In one specific embodiment, prior to step S21, the method further includes:

[0066] S201: Determine the nozzle acceleration time, nozzle acceleration, cylindrical acceleration time, and cylindrical acceleration based on the preset nozzle velocity curve and the preset cylindrical object velocity curve;

[0067] S202: Determine the nozzle acceleration distance based on the nozzle acceleration time and the nozzle acceleration;

[0068] S203: Determine the acceleration distance of the cylindrical object based on its acceleration time and acceleration.

[0069] After step S21, the method further includes:

[0070] S204: Correct the light source activation position and the light source activation time based on the nozzle acceleration distance and / or the cylindrical object acceleration distance;

[0071] Specifically, before the nozzle and the cylindrical object reach the preset nozzle moving speed and cylindrical object moving speed, there is an acceleration process. If the light source opening position is calculated solely based on the nozzle moving speed and the cylindrical object moving speed, errors will occur. Based on this, the above embodiment is improved by determining the nozzle acceleration time, nozzle acceleration, cylindrical object acceleration time, and cylindrical object acceleration based on the preset nozzle speed curve and preset cylindrical object speed curve. The nozzle acceleration distance is determined based on the nozzle acceleration time and the nozzle acceleration, and the cylindrical object acceleration distance is determined based on the cylindrical object acceleration time and the cylindrical object acceleration. After determining the light source opening position, the light source opening position and the light source opening time are corrected based on the nozzle acceleration distance and / or the cylindrical object acceleration distance to avoid errors caused by the acceleration process, making the light source opening position more accurate and avoiding poor curing effect caused by irradiation.

[0072] S22: Obtain the curing time of the preset unit area;

[0073] In one embodiment, the cylindrical object parameters further include the cylindrical object rotation speed, and the preset unit area irradiation time is obtained by the ink curing time, the cylindrical object rotation speed, and the cylindrical object movement speed.

[0074] S23: Determine the curing length of the light source based on the moving speed of the cylindrical object, the moving speed of the nozzle, and the curing time per unit area;

[0075] Specifically, the curing length L of the light source is calculated using the formula L = (V1 + V2)T. When the printhead is stationary and the cylindrical object moves to complete the printing, the light source opening length is V1T; when the cylindrical object is stationary and the printhead moves to complete the printing, the light source opening length is V2T; when the cylindrical object and the printhead move towards each other to complete the printing, the light source opening length is (V1 + V2)T.

[0076] S24: Determine the curing range based on the light source's on-state and the light source's curing length;

[0077] S3: When the nozzle and / or column enter the curing range, control each sub-light source of the light source to start working according to the preset rules based on the movement speed of the nozzle and / or column;

[0078] In one embodiment, step S3 specifically includes:

[0079] S31: Obtain the printing ink volume based on the printing data;

[0080] S32: Determine the output power of the light source based on the amount of printing ink, wherein the output power of the light source is proportional to the amount of printing ink;

[0081] S33: When the nozzle and / or column enter the curing range, according to the moving speed of the column and / or the moving speed of the nozzle and the output power, control each sub-light source of the light source to start working according to a preset rule;

[0082] Specifically, the printing data is the image dot matrix data of the image to be printed after rasterization processing. The image dot matrix data includes multiple dot data representing the ink volume. By statistically analyzing the dot data, the amount of printing ink required to print the image to be printed can be obtained. The output power of the light source is determined based on the amount of printing ink, wherein the output power of the light source is proportional to the amount of printing ink. When the nozzle and / or the cylindrical object enters the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the moving speed of the cylindrical object and / or the moving speed of the nozzle and the output power.

[0083] This embodiment first obtains the ink volume of the printed image, and then determines the output power of the light source based on the ink volume. Since the printing data is different each time it is printed, the corresponding ink volume is also different. Therefore, in this embodiment, the output power of the light source is also adjusted according to the ink volume corresponding to the printing data. During the curing process, the corresponding output power is used to cure the printed image, so that the output power of the light source can be adapted to the ink volume, and different printed images can be accurately cured. This allows the curing degree of the ink in different printed images to be as close to the ideal degree as possible, thereby greatly improving the quality of the printed products.

[0084] In one embodiment, the preset rules include:

[0085] When the nozzle moving speed is 0 and the cylindrical object moving speed is not 0, the sub-light sources within the curing range are sequentially activated according to the moving speed of the cylindrical object, starting from the sub-light source corresponding to the initial position of the nozzle relative to the cylindrical object at the time the light source is turned on.

[0086] When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light sources within the curing range are sequentially activated according to the nozzle moving speed, starting from the sub-light source corresponding to the initial position of the cylindrical object at the time the light source is turned on.

[0087] When both the nozzle moving speed and the cylindrical object moving speed are not zero, starting from the sub-light source corresponding to the light source activation position at the light source activation time, the sub-light sources within the curing range are activated sequentially according to the nozzle moving speed and the cylindrical object moving speed. The light source activation position is calculated using the following formula:

[0088] X3 = [(X2-X1) / (V1+V2)]V1+X1

[0089] Wherein, X3 is the light source turn-on position, V1 is the moving speed of the cylindrical object, V2 is the moving speed of the nozzle, X1 is the initial position of the cylindrical object, and X2 is the initial position of the nozzle relative to the cylindrical object;

[0090] Specifically, after obtaining the light source's activation time, curing range, and output power, the light source can be controlled to activate using these parameters. (See [link to relevant documentation]). Figure 3a As shown, when the cylindrical object moves and the printhead is fixed to complete printing, the control light source activates the sub-light source corresponding to the initial position of the printhead at time (X2-X1) / V1. As the cylindrical object moves in the second direction, the corresponding sub-light sources are gradually activated in the second direction until all sub-light sources within the range [X2, X2+V1T] are activated. (See also...) Figure 3b When the printhead moves in the first direction and the cylindrical object is fixed to complete printing, the control light source activates the sub-light source corresponding to the initial position of the cylindrical object at time (X2-X1) / V2. As the printhead moves in the first direction, the corresponding sub-light sources are gradually activated in that direction until all sub-light sources within the range [X1-V2T,X1] are activated. (See also...) Figure 3c When the nozzle and the cylindrical object move towards each other to complete printing, the control light source turns on the sub-light source corresponding to the position where the nozzle and the cylindrical object meet at time (X2-X1) / V1. As the nozzle and the cylindrical object move, the sub-light sources on both sides of X3 are gradually turned on until all sub-light sources in the range [X3-V2T, X3+V1T] are turned on. The first direction and the second direction are opposite.

[0091] In one embodiment, after step S3, the method further includes:

[0092] S4: When the nozzle and / or column completely leave the curing range, the sub-light source within the curing range is turned off according to a preset shutdown rule;

[0093] In a preferred embodiment, S4 specifically includes:

[0094] S41: When the nozzle moving speed is 0 and the cylindrical object moving speed is not 0, the sub-light source within the curing range is turned off after the cylindrical object has completely moved out of the curing range.

[0095] S42: When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light source within the curing range is turned off after the nozzle has completely moved out of the curing range;

[0096] S43: When both the nozzle moving speed and the cylindrical object moving speed are not zero, after the nozzle and the cylindrical object have completely moved out of the curing range, the sub-light source within the curing range is turned off.

[0097] Specifically, when the cylindrical object moves and the printhead remains stationary to complete printing, when the cylindrical object completely moves out of the illumination range of the sub-light source corresponding to position X2, all sub-light sources within [X2, X2+V1T] are turned off; when the printhead moves and the cylindrical object remains stationary to complete printing, when the printhead moves out of the curing range [X1-V2T, X2], the sub-light source is turned off; when the printhead and the cylindrical object move towards each other to complete printing, as the printhead and the cylindrical object move out of the curing range, all sub-light sources within the range [X3-V2T, X3+V1T] are gradually turned off.

[0098] The dynamic control method for curing the light source in this embodiment for printing on cylindrical surfaces obtains cylindrical parameters and nozzle control parameters, and determines the curing range of the light source based on these parameters. When the nozzle and / or the cylindrical object enters the curing range, the method controls each sub-light source of the light source to start working according to a preset rule based on the movement speed of the nozzle and / or the cylindrical object. This achieves dynamic control of the curing light source, ensuring sufficient illumination, improving the curing effect of the ink, and extending the lifespan of the curing light source.

[0099] Example 2

[0100] See Figure 4 This embodiment provides a dynamic control device for curing light source for printing on the surface of a cylindrical object, characterized in that the device includes:

[0101] The parameter acquisition module is used to acquire cylindrical object parameters and nozzle control parameters;

[0102] The curing range determination module is used to obtain the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters;

[0103] The light source control module is used to control each sub-light source of the light source to start working according to preset rules based on the movement speed of the nozzle and / or column when the nozzle and / or column enters the curing range.

[0104] Preferably, the cylindrical object parameters include the cylindrical object moving speed and the initial position of the cylindrical object, the nozzle control parameters include the nozzle moving speed and the initial position of the nozzle relative to the cylindrical object, and the curing range determination module includes:

[0105] The first determining unit is used to determine the light source turning position and the light source turning time based on the cylindrical object's moving speed, the cylindrical object's initial position, the nozzle's moving speed, and the nozzle's initial position relative to the cylindrical object.

[0106] The first acquisition unit is used to acquire the curing time of a preset unit area;

[0107] The second determining unit is used to determine the curing length of the light source based on the moving speed of the cylindrical object, the moving speed of the nozzle, and the curing time per unit area.

[0108] The third determining unit is used to determine the curing range based on the light source's on-state and the light source's curing length.

[0109] Preferably, the cylindrical object parameters also include the cylindrical object rotation speed, and the preset unit area irradiation time is obtained by the ink curing time, the cylindrical object rotation speed, and the cylindrical object movement speed.

[0110] Preferably, the light source control module includes:

[0111] Ink volume acquisition unit, used to acquire the printing ink volume based on printing data;

[0112] An output power determining unit is used to determine the output power of the light source based on the amount of printing ink, wherein the output power of the light source is proportional to the amount of printing ink;

[0113] The light source control unit is used to control each sub-light source of the light source to start working according to preset rules when the nozzle and / or cylindrical object enters the curing range, based on the moving speed of the cylindrical object and / or the moving speed of the nozzle and the output power.

[0114] Preferably, the preset rules include:

[0115] When the nozzle moving speed is 0 and the cylindrical object moving speed is not 0, the sub-light sources within the curing range are sequentially activated according to the moving speed of the cylindrical object, starting from the sub-light source corresponding to the initial position of the nozzle relative to the cylindrical object at the time the light source is turned on.

[0116] When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light sources within the curing range are sequentially activated according to the nozzle moving speed, starting from the sub-light source corresponding to the initial position of the cylindrical object at the time the light source is turned on.

[0117] When both the nozzle moving speed and the cylindrical object moving speed are not zero, starting from the sub-light source corresponding to the light source activation position at the light source activation time, the sub-light sources within the curing range are activated sequentially according to the nozzle moving speed and the cylindrical object moving speed. The light source activation position is calculated using the following formula:

[0118] X3 = [(X2-X1) / (V1+V2)]V1+X1

[0119] Wherein, X3 is the light source turn-on position, V1 is the moving speed of the cylindrical object, V2 is the moving speed of the nozzle, X1 is the initial position of the cylindrical object, and X2 is the initial position of the nozzle relative to the cylindrical object.

[0120] Preferably, the device further includes:

[0121] The light source shutdown module controls the sub-light source within the curing range to shut down according to a preset shutdown rule when the nozzle and / or cylindrical object completely leave the curing range.

[0122] Preferably, the light source shut-off module includes:

[0123] The first shut-off unit is used to shut off the sub-light source within the curing range after the column has completely moved out of the curing range when the nozzle moving speed is 0 and the column moving speed is not 0.

[0124] The second shut-off unit is used to shut off the sub-light source within the curing range after the nozzle has completely moved out of the curing range when the nozzle moving speed is not 0 and the column moving speed is 0.

[0125] The third shut-off unit is used to shut off the sub-light source within the curing range after the nozzle and the column have completely moved out of the curing range when both the nozzle moving speed and the column moving speed are not zero.

[0126] The dynamic control device for curing the light source for printing on the surface of a cylindrical object in Embodiment 2 of this invention obtains the cylindrical object parameters and the nozzle control parameters, and obtains the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters. When the nozzle and / or the cylindrical object enters the curing range, the device controls each sub-light source of the light source to start working according to a preset rule based on the movement speed of the nozzle and / or the cylindrical object. This achieves dynamic control of the curing light source, ensures sufficient irradiation by the curing light source, improves the curing effect of the ink, and extends the lifespan of the curing light source.

[0127] Example 3

[0128] In addition, combined Figure 1 The dynamic control method for curing light source for printing on the surface of a cylindrical object, as described in this embodiment of the invention, can be implemented by a dynamic control device for curing light source for printing on the surface of a cylindrical object. Figure 5 A schematic diagram of the hardware structure of the dynamic control device for curing light source for printing on the surface of a cylindrical object, provided in an embodiment of the present invention, is shown.

[0129] The dynamic control device for curing light source printing on cylindrical surfaces may include a processor and a memory storing computer program instructions.

[0130] 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.

[0131] 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.

[0132] The processor reads and executes computer program instructions stored in the memory to implement any of the above embodiments of the dynamic control method for curing light source for printing on the surface of a cylindrical object.

[0133] In one example, the dynamic control device for curing light source printing on the surface of a cylindrical object may also include a communication interface and a bus. For example, Figure 5 As shown, the processor, memory, and communication interface are connected via a bus and communicate with each other.

[0134] The communication interface is mainly used to enable communication between various modules, devices, units and / or equipment in the embodiments of the present invention.

[0135] A bus, including hardware, software, or both, couples together components of a dynamic control device for curing light sources on a cylindrical surface. 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.

[0136] Example 4

[0137] Furthermore, in conjunction with the dynamic control method for light source curing of cylindrical surface printing in the above embodiments, this invention can be implemented using a computer-readable storage medium. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the dynamic control methods for light source curing of cylindrical surface printing in the above embodiments.

[0138] In summary, the dynamic control method, apparatus, and equipment for curing light source in cylindrical surface printing provided by the embodiments of the present invention obtains cylindrical object parameters and nozzle control parameters, and obtains the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters. When the nozzle and / or the cylindrical object enters the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the movement speed of the nozzle and / or the cylindrical object. This achieves dynamic control of the curing light source, ensures sufficient irradiation by the curing light source, improves the curing effect of the ink, and extends the lifespan of the curing light source.

[0139] 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.

[0140] 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.

[0141] 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.

[0142] Finally, it should be noted that 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 scope of protection 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 scope of protection of the present invention.

Claims

1. A method for dynamic control of light source curing in printing on the surface of a cylindrical object, wherein the light source comprises multiple individually controllable sub-light sources, characterized in that, The method includes: Obtain cylindrical object parameters and nozzle control parameters, wherein the cylindrical object parameters include the cylindrical object moving speed and the initial position of the cylindrical object, and the nozzle control parameters include the nozzle moving speed and the initial position of the nozzle relative to the cylindrical object; The curing range of the light source is obtained based on the cylindrical object parameters and the nozzle control parameters, specifically including: The light source activation position and activation time are determined based on the column's moving speed, initial position, nozzle moving speed, and the nozzle's initial position relative to the column. Obtain the curing time of the preset unit area; The curing length of the light source is determined based on the moving speed of the cylindrical object, the moving speed of the nozzle, and the curing time per unit area. The curing range is determined based on the light source's on-state and the light source's curing length; When the nozzle and / or cylindrical object enter the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the movement speed of the nozzle and / or cylindrical object.

2. The method for dynamic control of light source curing for printing on the surface of a cylindrical object according to claim 1, characterized in that, The cylindrical object parameters also include the cylindrical object rotation speed, and the preset unit area irradiation time is obtained by the ink curing time, the cylindrical object rotation speed, and the cylindrical object movement speed.

3. The method for dynamic control of light source curing for printing on the surface of a cylindrical object according to claim 2, characterized in that, When the nozzle and / or cylindrical object enter the curing range, controlling each sub-light source of the light source to turn on and operate according to a preset rule based on the movement speed of the nozzle and / or cylindrical object includes: Obtain the ink volume based on the print data; The output power of the light source is determined based on the amount of printing ink, wherein the output power of the light source is proportional to the amount of printing ink. When the nozzle and / or column enter the curing range, the sub-light sources of the light source are controlled to start working according to preset rules based on the moving speed of the column and / or the moving speed of the nozzle and the output power.

4. The method for dynamic control of light source curing for printing on the surface of a cylindrical object according to claim 3, characterized in that, The preset rules include: When the nozzle moving speed is 0 and the cylindrical object moving speed is not 0, the sub-light sources within the curing range are sequentially activated according to the moving speed of the cylindrical object, starting from the sub-light source corresponding to the initial position of the nozzle relative to the cylindrical object at the time the light source is turned on. When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light sources within the curing range are sequentially activated according to the nozzle moving speed, starting from the sub-light source corresponding to the initial position of the cylindrical object at the time the light source is turned on. When both the nozzle moving speed and the cylindrical object moving speed are not zero, starting from the sub-light source corresponding to the light source activation position at the light source activation time, the sub-light sources within the curing range are activated sequentially according to the nozzle moving speed and the cylindrical object moving speed. The light source activation position is calculated using the following formula: Wherein, X3 is the light source turn-on position, V1 is the moving speed of the cylindrical object, V2 is the moving speed of the nozzle, X1 is the initial position 1 of the cylindrical object, and X2 is the initial position of the nozzle relative to the cylindrical object.

5. The method for dynamic control of light source curing for printing on the surface of a cylindrical object according to any one of claims 2-4, characterized in that, After controlling each sub-light source of the light source to turn on according to a preset rule based on the movement speed of the nozzle and / or column when the nozzle and / or column enters the curing range, the method further includes: When the nozzle and / or column completely leave the curing range, the sub-light source within the curing range is turned off according to a preset shutdown rule.

6. The method for dynamic control of light source curing for printing on the surface of a cylindrical object according to claim 5, characterized in that, The step of controlling the sub-light source within the curing range to shut down according to a preset shutdown rule when the nozzle and / or column completely leave the curing range includes: When the nozzle moving speed is 0 and the column moving speed is not 0, the sub-light source within the curing range is turned off after the column has completely moved out of the curing range. When the nozzle moving speed is not 0 and the cylindrical object moving speed is 0, the sub-light source within the curing range is turned off after the nozzle has completely moved out of the curing range. When both the nozzle moving speed and the cylindrical object moving speed are not zero, the sub-light source within the curing range is turned off after the nozzle and the cylindrical object have completely moved out of the curing range.

7. A dynamic control device for curing light source for printing on the surface of a cylindrical object, characterized in that, The device includes: The parameter acquisition module is used to acquire cylindrical object parameters and nozzle control parameters, wherein the cylindrical object parameters include the cylindrical object moving speed and the initial position of the cylindrical object, and the nozzle control parameters include the nozzle moving speed and the initial position of the nozzle relative to the cylindrical object; The curing range determination module is used to obtain the curing range of the light source based on the cylindrical object parameters and the nozzle control parameters, and specifically includes: The light source activation position and activation time are determined based on the column's moving speed, initial position, nozzle moving speed, and the nozzle's initial position relative to the column. Obtain the curing time of the preset unit area; The curing length of the light source is determined based on the moving speed of the cylindrical object, the moving speed of the nozzle, and the curing time per unit area. The curing range is determined based on the light source's on-state and the light source's curing length; The light source control module is used to control each sub-light source of the light source to start working according to preset rules based on the movement speed of the nozzle and / or column when the nozzle and / or column enters the curing range.

8. A dynamic control device for curing light source printing on the surface of a cylindrical object, characterized in that, include: The method comprises at least one processor, at least one memory, and computer program instructions stored in the memory, wherein when the computer program instructions are executed by the processor, the method implements the dynamic control method for light source curing of printing on the surface of a cylindrical object as described in any one of claims 1-6.

9. A storage medium storing computer program instructions thereon, characterized in that, When the computer program instructions are executed by the processor, the light source curing dynamic control method for printing on the surface of a cylindrical object as described in any one of claims 1-6 is implemented.

Images