Digital printing machine

Abstract

The embodiment of the utility model discloses a digital printing machine which comprises a rack, and a conveying assembly, a spray head moving assembly and a visual printing assembly are arranged on the rack. The conveying assembly comprises a plurality of sets of conveying modules arranged side by side. Power is provided for the conveying modules through a driving module on one side. The nozzle moving assembly comprises a transverse translation mechanism and a longitudinal translation mechanism, and the translation direction of the longitudinal translation mechanism is the same as the conveying direction of the conveying assembly; the visual printing assembly comprises an ink supply module, an ink jet module and a visual module, the ink supply module supplies ink to the ink jet module, and the visual module confirms a printing operation area for the ink jet module. According to the printing method, the positioning of a printing area is confirmed through the visual module in an image acquisition mode, the ink-jet module which is in transmission with the visual module at the same time is used for printing, and a digital acquisition structural form is adopted, so that high-precision image-text printing is realized.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of printing equipment, and more particularly to a digital printing press. Background Art

[0002] Disclosing the information of this background art section is only intended to enhance the understanding of the overall background of the present disclosure, and is not necessarily to be regarded as an admission or an implication in any form that this information constitutes relevant art already known to those of ordinary skill in the art.

[0003] In the prior art, graphics and texts are printed on the glass surface by screen printing. The graphics and texts are presented on the screen plate through plate making, applying photosensitive materials and film exposure. During printing, the ink is transferred to the substrate through the mesh holes of the graphic part by the extrusion of a squeegee.

[0004] This method requires complex intermediate processes, which consists of elements such as screen printing plates, squeegees, inks, etc. During this period, processes such as stretching the screen, degreasing, drying, coating photosensitive emulsion, exposure, development, and plate repair are required. The number of processes is large and the operation is cumbersome.

[0005] Moreover, the printing quality is affected by factors such as the tension of the stretched screen, the effect of screen washing and drying, the quality of photosensitive emulsion coating, and the operation of the squeegee. There are many factors affecting the quality of the finished product. A large amount of ink waste also occurs during the printing process.

[0006] At the same time, since the fineness of screen printing depends on the mesh number of the screen, it is impossible to produce high-precision graphics and texts. Moreover, for graphics and texts such as QR codes with one code for one item, screen printing can hardly be achieved. Summary of the Invention

[0007] For this reason, embodiments of the present disclosure provide a digital printing press to solve the problem of difficulty in printing high-precision printed products due to the limitation of the screen mesh number in the related art.

[0008] To solve the above problems, the embodiments of the present disclosure provide the following technical solutions:

[0009] In a first aspect of the embodiments of the present disclosure, a digital printing press is provided, including a frame;

[0010] A conveying assembly, disposed on the frame, including a plurality of groups of transmission modules arranged side by side, and each transmission module is powered by a driving module on one side;

[0011] A nozzle moving assembly, disposed on the frame and spanning the conveying assembly, including a horizontal translation mechanism and a vertical translation mechanism, and the translation direction of the vertical translation mechanism is the same as the conveying direction of the conveying assembly;

[0012] A visual printing component is arranged on the nozzle moving component and can realize horizontal and / or vertical displacement printing covering the working area formed by the power transmission module. It includes an ink supply module, an inkjet module, and a visual module. The ink supply module supplies ink to the inkjet module, and the visual module confirms the printing operation area for the inkjet module.

[0013] In one embodiment, the drive module includes a transmission motor installed on the side of the frame. The drive end of the transmission motor is provided with a transmission shaft. The transmission module includes a driving wheel installed on the transmission shaft. An idler wheel is provided at the opposite end of the driving wheel. A transmission belt is provided on the driving wheel and the idler wheel.

[0014] In one embodiment, the longitudinal translation mechanism includes longitudinal slide rails oppositely arranged on the frame. The longitudinal slide rails are located on both sides of the conveying component. A cross beam is installed on the longitudinal slide rails through longitudinal sliders. The longitudinal sliders are driven by a longitudinal motor and move longitudinally along the longitudinal slide rails. The transverse translation mechanism is arranged on the cross beam, and the visual printing component is arranged on the transverse translation mechanism.

[0015] In one embodiment, the transverse translation mechanism includes a transverse slide rail installed on the cross beam. The visual printing component is installed on the transverse slide rail through a transverse slider. The transverse slider is connected to a transverse lead screw driven by a transverse motor and moves transversely along the transverse slide rail.

[0016] In one embodiment, a drag chain is provided on the side of the cross beam. One end of the drag chain is connected to the cross beam, and the other end is fixed on the frame.

[0017] In one embodiment, the ink supply module includes a main ink cartridge. The main ink cartridge is connected to the inkjet module through an ink supply pump. A filter is provided between the ink supply pump and the inkjet module.

[0018] In one embodiment, a stirrer extending into the main ink cartridge is provided inside the main ink cartridge. The stirrer is driven by a stirring motor.

[0019] In one embodiment, the inkjet module includes a light-shielding housing. An opening is provided at the bottom of the light-shielding housing. A plurality of precision nozzles with the inkjet openings facing downwards are provided inside the light-shielding housing at the opening. The precision nozzles are connected through pipelines to a secondary ink cartridge arranged on the back plate of the light-shielding housing. The secondary ink cartridge is connected to the main ink cartridge. A visual module is provided at the top of the light-shielding housing. The orthographic projection of the visual module is located on the side of the orthographic projection of the precision nozzles.

[0020] In one embodiment, the ink pipeline between the main ink cartridge and the secondary ink cartridge includes an ink supply pipeline and a circulation pipeline. A circulation pump is provided on the circulation pipeline. A control board for controlling the ink supply pump and the circulation pump is provided on the front side of the secondary ink cartridge. A fan is provided on the control board.

[0021] In one embodiment, the vision module includes a vision bracket, on which a camera with its vision sensor facing downward is provided. The visual orthographic projection of the camera is located on the side of the inkjet orthographic projection of the precision nozzle. At the bottom of the vision module, a calibration bracket is provided, and in the middle of the calibration bracket is a vision window, which is perpendicularly corresponding to the vision sensor of the camera.

[0022] According to the embodiments of the present disclosure, the digital printer has the following advantages: It includes a frame, on which a conveying component, a nozzle moving component, and a vision printing component are provided; the conveying component includes multiple groups of transmission modules arranged side by side, and each transmission module is powered by a driving module on one side; the nozzle moving component includes a horizontal translation mechanism and a vertical translation mechanism, and the translation direction of the vertical translation mechanism is the same as the conveying direction of the conveying component; the vision printing component includes an ink supply module, an inkjet module, and a vision module. The ink supply module supplies ink to the inkjet module, and the vision module confirms the printing operation area for the inkjet module. This printer locates the printing area through image acquisition and confirms it with the vision module, and the inkjet module that is driven simultaneously with the vision module performs printing. Adopting the structural form of digital acquisition, it realizes the printing of high-precision graphics and texts. Moreover, the vision module and the inkjet module that run synchronously and equidistantly can effectively improve the working efficiency. More importantly, the set distance between the two forms a fixed structure with an unchanged positional relationship. Therefore, when the content of the printed product is determined, only the running speed needs to be set in the control software, which is convenient to operate, reduces the control difficulty, and improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present disclosure. Therefore, they do not have technical substantive meanings. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present disclosure can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in the present disclosure can cover.

[0025] Figure 1 It is a three-dimensional view of a digital printer shown according to an exemplary embodiment;

[0026] Figure 2Front view of a digital printer shown according to an exemplary embodiment;

[0027] Figure 3 Right view of a digital printer shown according to an exemplary embodiment;

[0028] Figure 4 Top view of the conveying assembly in a digital printer shown according to an exemplary embodiment;

[0029] Figure 5 Isometric view of the transmission module in a digital printer shown according to an exemplary embodiment

[0030] Figure 6 Isometric view of the nozzle moving assembly in a digital printer shown according to an exemplary embodiment;

[0031] Figure 7 Isometric view of the vision printing assembly in a digital printer shown according to an exemplary embodiment;

[0032] Figure 8 Isometric view of the ink supply module in a digital printer shown according to an exemplary embodiment.

[0033] In the figure: 1, frame;

[0034] 2, conveying assembly; 201, transmission motor; 202, transmission shaft; 203, driving wheel; 204, idler wheel; 205, transmission belt;

[0035] 3, nozzle moving assembly; 301, longitudinal slide rail; 302, cross beam; 303, longitudinal motor; 304, transverse slide rail; 305, transverse motor; 306, cable carrier;

[0036] 4, vision printing assembly; 401, main ink cartridge; 402, ink supply pump; 403, filter; 404, stirring motor; 405, light-shielding housing; 406, precision nozzle; 407, secondary ink cartridge; 408, circulation pump; 409, control board; 410, fan; 411, vision bracket; 412, camera; 413, calibration bracket;

[0037] 5, main controller. Detailed implementation manners

[0038] The following specific embodiments illustrate the implementation manners of the present disclosure. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present disclosure.

[0039] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present disclosure. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present disclosure.

[0040] As Figures 1 - 3 shown, it shows a digital printer provided by an embodiment of the present invention. It includes a frame 1, on which a conveying component, a nozzle moving component 3, and a visual printing component 4 are provided; the conveying component 2 includes multiple groups of transmission modules arranged side by side, and the transmission modules are all powered by a driving module on one side; the nozzle moving component 3 includes a horizontal translation mechanism and a vertical translation mechanism, and the translation direction of the vertical translation mechanism is the same as the conveying direction of the conveying component 2; the visual printing component 4 includes an ink supply module, an inkjet module, and a visual module. The ink supply module supplies ink to the inkjet module, and the visual module confirms the printing operation area for the inkjet module.

[0041] On the side of the frame 1, a main controller 5 is also provided. The main controller 5 is a touch display control board, which is the control end of the printer. Through the main controller 5, parameter setting and display recording of the working process can be realized.

[0042] This printing is carried out by means of image acquisition. The printing area is located by the visual module, and the inkjet module that is driven simultaneously with the visual module performs printing. It adopts the structural form of digital acquisition to achieve high-precision graphic printing. Moreover, the visual module and the inkjet module that run synchronously and equidistantly can effectively improve the working efficiency. More importantly, the set distance between the two forms a fixed structure and the positional relationship remains unchanged. Therefore, when the content of the printed product is determined, only the running speed needs to be set in the control software, which is convenient to operate, reduces the control difficulty, and improves the working efficiency.

[0043] In one embodiment, Figures 4 - 6 shown, the driving module includes a transmission motor 201 installed on the side of the frame 1. A transmission shaft 202 is provided at the driving end of the transmission motor 201. The transmission module includes a driving wheel 203 installed on the transmission shaft 202. An idle wheel 204 is provided at the opposite end of the driving wheel 203. A transmission belt 205 is provided on the driving wheel 203 and the idle wheel 204.

[0044] Among them, the conveying component 2 is mainly used to convey the product to be printed to the printing area more conveniently, saving manpower. The driving wheel 203 and the idle wheel 204 are arranged on the transmission frame, and a tensioning wheel can also be arranged inside the transmission frame. The transmission belt 205 is alternately tightened between the tensioning wheel, the driving wheel 203, and the idle wheel 204 to ensure the stability of the transmission.

[0045] In one embodiment, see Figure 1As shown in the figure, the longitudinal translation mechanism includes longitudinal sliding rails 301 oppositely arranged on the frame 1. The longitudinal sliding rails 301 are located on both sides of the conveying assembly 2. A cross beam 302 is mounted on the longitudinal sliding rails 301 through longitudinal sliders. The longitudinal sliders are driven by a longitudinal motor 303 and move longitudinally along the longitudinal sliding rails 301. The transverse translation mechanism is arranged on the cross beam 302, and the visual printing assembly 4 is arranged on the transverse translation mechanism.

[0046] Among them, the longitudinal motor 303 is vertically mounted on the frame 1 and can drive the longitudinal slider to translate on the longitudinal sliding rail 301 through a chain and a transmission belt 205.

[0047] In one embodiment, the transverse translation mechanism includes a transverse sliding rail 304 mounted on the cross beam 302. The visual printing assembly 4 is mounted on the transverse sliding rail 304 through a transverse slider. The transverse slider is connected to a transverse lead screw driven by a transverse motor 305 and moves transversely along the transverse sliding rail 304.

[0048] In one embodiment, in order to ensure the stability of the operation of the longitudinal slider, a drag chain 306 is provided on the side of the cross beam 302. One end of the drag chain 306 is connected to the cross beam 302, and the other end is fixed on the frame 1.

[0049] In one embodiment, as Figures 7 - 8 shown, the ink supply module includes a main ink cartridge 401. The main ink cartridge 401 is connected to an inkjet module through an ink supply pump 402. A filter 403 is provided between the ink supply pump 402 and the inkjet module.

[0050] In one embodiment, a stirrer extending into the interior of the main ink cartridge 401 is provided inside the main ink cartridge 401. The stirrer is driven by a stirring motor 404. By stirring the ink inside with the stirrer, the problem of ink deposition is effectively avoided, the printing effect is guaranteed, and at the same time, the maintenance cost caused by ink clogging the pipeline is saved.

[0051] In one embodiment, the inkjet module includes a light-shielding housing 405. An opening is provided at the bottom of the light-shielding housing 405. A plurality of precision nozzles 406 with the inkjet ports facing downwards are provided inside the light-shielding housing 405 at the opening. The precision nozzles 406 are connected to a secondary ink cartridge 407 provided on the back plate of the light-shielding housing 405 through pipelines. The secondary ink cartridge 407 is connected to the main ink cartridge 401. A visual module is provided at the top of the light-shielding housing 405. The orthographic projection of the visual module is located on the side of the orthographic projection of the precision nozzles 406.

[0052] In one embodiment, the ink pipeline between the main ink cartridge 401 and the secondary ink cartridge 407 includes an ink supply pipeline and a circulation pipeline. A circulation pump 408 is provided on the circulation pipeline. A control board 409 for controlling the ink supply pump 402 and the circulation pump 408 is provided on the front side of the secondary ink cartridge 407. A fan 410 is provided on the control board 409.

[0053] A fan 410 is provided on the outer side of the control board 409. The fan 410 can cool down the control board 409. The control board 409 is arranged overlapping with the secondary ink cartridge 407 and is located above the precision nozzle 406. The overlapping arrangement improves the precision of the components and optimizes the utilization of space.

[0054] During the specific operation process, the ink supply port of the main ink cartridge 401 is connected to the secondary ink cartridge 407 through an ink supply pump 402 and a filter 403. The ink outlet of the secondary ink cartridge 407 is connected to the precision nozzle 406. In order to prevent the secondary ink cartridge 407 from storing ink when the printer is not working and causing pipeline blockage, a circulation pipeline is set up, and the stored ink is refluxed into the main ink cartridge 401 through a circulation pump 408.

[0055] In one embodiment, the vision module includes a vision bracket 411. A camera 412 with a downward vision receptor is provided on the vision bracket 411. The visual orthographic projection of the camera 412 is located on the side of the inkjet orthographic projection of the precision nozzle 406. A calibration bracket 413 is provided at the bottom of the vision module. The middle of the calibration bracket 413 is a vision window, and the vision window corresponds perpendicularly to the vision receptor of the camera 412.

[0056] In this printer, the vision module and the inkjet module are integrated together, enabling them to operate simultaneously during the printing process, improving work efficiency. More importantly, the set distance between the two forms a fixed structure with an unchanged positional relationship. Therefore, when the content of the printed product is determined, only the running speed needs to be set in the control software, which is convenient to operate, reduces the control difficulty, and improves work efficiency.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0058] Although the present disclosure has been described in detail above with general descriptions and specific embodiments, based on the present disclosure, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present disclosure fall within the scope of protection required by the present disclosure.

Claims

1. A digital printing press, characterized in that, Including Frame Conveyor assembly, arranged on the frame, including multiple groups of transmission modules arranged side by side, and power is provided to each transmission module by a drive module on one side Nozzle moving assembly, arranged on the frame and spanning the conveyor assembly, including a lateral translation mechanism and a longitudinal translation mechanism, and the translation direction of the longitudinal translation mechanism is the same as the conveying direction of the conveyor assembly Vision printing assembly, arranged on the nozzle moving assembly, capable of realizing lateral and / or longitudinal displacement printing covering the working area formed by the transmission module, including an ink supply module, an inkjet module and a vision module. The ink supply module supplies ink to the inkjet module, and the vision module confirms the printing operation area for the inkjet module 2. The digital printing press according to claim 1, characterized in that, The drive module includes a transmission motor installed on the side of the frame. A transmission shaft is provided at the drive end of the transmission motor. The transmission module includes a driving wheel installed on the transmission shaft. An idler wheel is provided at the opposite end of the driving wheel. A transmission belt is provided on the driving wheel and the idler wheel 3. The digital printing press according to claim 1, characterized in that, The longitudinal translation mechanism includes longitudinal slide rails oppositely arranged on the frame. The longitudinal slide rails are located on both sides of the conveyor assembly. A cross beam is installed on the longitudinal slide rails through longitudinal sliders. The longitudinal sliders are driven by a longitudinal motor and move longitudinally along the longitudinal slide rails. The lateral translation mechanism is arranged on the cross beam, and the vision printing assembly is arranged on the lateral translation mechanism 4. The digital printing press according to claim 3, characterized in that, The lateral translation mechanism includes a lateral slide rail installed on the cross beam. The vision printing assembly is installed on the lateral slide rail through a lateral slider. The lateral slider is connected to a lateral lead screw driven by a lateral motor and moves laterally along the lateral slide rail 5. The digital printing press according to claim 4, wherein A drag chain is provided on the side of the cross beam. One section of the drag chain is connected to the cross beam, and the other end is fixed on the frame 6. The digital printing press according to claim 1, wherein The ink supply module includes a main ink cartridge. The main ink cartridge is connected to the inkjet module through an ink supply pump. A filter is provided between the ink supply pump and the inkjet module 7. The digital printing machine according to claim 6, characterized in that, A stirrer extending into the interior of the main ink cartridge is provided inside the main ink cartridge. The stirrer is driven by a stirring motor 8. The digital printing press according to claim 7, wherein The inkjet module includes a light-shielding housing. An opening is provided at the bottom of the light-shielding housing. Multiple groups of precision nozzles with inkjet openings downward are provided inside the light-shielding housing at the opening. The precision nozzles are connected to a secondary ink cartridge arranged on the back plate of the light-shielding housing through a pipeline. The secondary ink cartridge is connected to the main ink cartridge. A vision module is provided at the top of the light-shielding housing. The orthographic projection of the vision module is located on the side of the orthographic projection of the precision nozzles 9. The digital printing press according to claim 8, characterized in that, The ink pipeline between the main ink cartridge and the secondary ink cartridge includes an ink supply pipeline and a circulation pipeline. A circulation pump is provided on the circulation pipeline. A control board for controlling the ink supply pump and the circulation pump is provided on the front side of the secondary ink cartridge. A fan is provided on the control board 10. The digital printing press according to claim 9, characterized in that, The vision module includes a vision bracket. A camera with a vision sensor downward is provided on the vision bracket. The vision orthographic projection of the camera is located on the side of the inkjet orthographic projection of the precision nozzles. A calibration bracket is provided at the bottom of the vision module. The middle of the calibration bracket is a vision window, and the vision window is perpendicularly corresponding to the vision sensor of the camera

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