Digital printing nozzle dot number detection and calibration device

Abstract

The utility model discloses a digital printing nozzle dot number detection and calibration device, which comprises a detection and calibration assembly, and the detection and calibration assembly comprises two first linear modules, a second linear module, a limiting seat, a mounting seat, a detection camera, a driving seat, four limiting grooves, a servo motor, two screw rods and four limiting strips. According to the utility model, digital printing pictures are captured in real time through the detection camera, real-time detection is carried out through the detection camera, a manual detection mode is replaced, the detection accuracy and the working efficiency are improved, and the detection accuracy and the working efficiency are improved through the cooperation of the first linear module, the second linear module and the servo motor. Automatic calibration of the positions of the digital printing nozzle body in the X-axis direction, the Y-axis direction and the Z-axis direction can be achieved, and the final printing quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of detection and calibration device, specifically digital printing nozzle dot number detection and calibration device, belong to digital printing technical field. BACKGROUND

[0002] Digital printing nozzle dot number refers to the area rate of inking in unit area, usually use "dot" as measurement unit.Net dot number reflects the size of the area coverage of net dot on printed matter, i.e. the proportion of area covered by ink in unit area.

[0003] In digital printing, the accuracy of nozzle orifice position is directly related to the quality of final printed matter.Specifically, when nozzle orifice position needs to be offset, this offset will directly lead to the change of ink droplet jet trajectory.Ink droplets cannot accurately fall on printing medium according to preset path, thereby affecting the accuracy of net dot number, so that the originally evenly distributed net dot appears unevenly dense and different in size, resulting in net dot number unable to reach the expected design value.

[0004] At present, magnifying glass is often used to measure the proportion of net dot area and blank area, and then realize the detection of net dot number.This method largely depends on the experience accumulation of operator, so the net dot number ratio obtained by magnifying glass is often subject to certain error, which not only affects the accuracy of printed matter color, but also causes adverse effects on the overall quality of printed matter.More importantly, this traditional visual method cannot realize automatic calibration of printing nozzle position during printing process, thereby leading to the decline of final printing quality.Therefore, a kind of digital printing nozzle dot number detection and calibration device is proposed. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of digital printing nozzle dot number detection and calibration device to solve one of the problems proposed in the above background technology.

[0006] The utility model is implemented by the following technical solutions: a kind of digital printing nozzle dot number detection and calibration device, including detection calibration component, the detection calibration component includes two first straight line module, second straight line module, limit seat, mounting seat, detection camera, drive seat, four limit grooves, servo motor, two lead screws and four limit strips;

[0007] The second linear module is installed on the lower surface of the movers of the two first linear modules, the limiting seat is installed on the lower surface of the mover of the second linear module, one side of the mounting seat is fixedly connected to the limiting seat, a detection camera is installed on one side of the mounting seat, four limiting strips are symmetrically fixedly connected to the inner side wall of the limiting seat, four limiting grooves are symmetrically formed in the outer side wall of the driving seat, the driving seat is threadedly connected to the outer side wall of the two lead screws, and the lead screws are fixedly connected to the output shaft of the servo motor.

[0008] As a further preferred aspect of the technical solution: the servo motor is installed on the upper surface of the limiting seat, and the driving seat is slidingly connected to the inner side wall of the limiting seat.

[0009] As a further preferred aspect of the technical solution: the limiting strips are slidingly connected to the inner side wall of the limiting grooves, and the lower surface of the driving seat is provided with a digital printing nozzle body.

[0010] As a further preferred aspect of the technical solution: one side of the limiting seat is provided with a controller.

[0011] As a further preferred aspect of the technical solution: an installation plate is arranged above the limiting seat, and the two first linear modules are symmetrically installed on the lower surface of the installation plate.

[0012] As a further preferred aspect of the technical solution: installation holes are symmetrically formed in the interior of the installation plate.

[0013] As a further preferred aspect of the technical solution: the detection camera is obliquely arranged on one side of the digital printing nozzle body.

[0014] As a further preferred aspect of the technical solution: the signal end of the controller is connected with the signal end of the first linear module, the second linear module and the servo motor.

[0015] The advantages of the utility model are:

[0016] 1, the utility model discloses a detection camera real -time capture digital printing's picture, and the control system carries out analysis to image picture, calculates the dot number and generates the control digital printing nozzle body in X, Y, Z axle direction's adjustment signal, then will adjustment signal send to controller, and the working state of controller respectively to first linear module, second linear module and servo motor is controlled, and the X axle direction position of digital printing nozzle body can be calibrated through the first linear module, and the Y axle direction of digital printing nozzle body can be calibrated through the second linear module, and the Z axle direction of digital printing nozzle body can be calibrated through servo motor driving lead screw rotation.

[0017] 2, the utility model discloses a real -time detection is carried out through detection camera, replaced the manual detection mode, improved the accuracy of detection and work efficiency, and through the cooperation of first linear module, second linear module and servo motor, the automatic calibration of X, Y, Z axle direction position of digital printing spray head main part can be realized, and the quality of final printing is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, below description in the drawing only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural exploded schematic diagram of the utility model;

[0021] Figure 3 It is a driving seat structural schematic diagram of the utility model;

[0022] Figure 4 It is a limiting strip installation position schematic diagram of the utility model.

[0023] In the drawing: 101, detection calibration assembly;11, first linear module;12, second linear module;13, limit seat;14, mounting seat;15, digital printing spray head main part;16, detection camera;17, controller;18, driving seat;19, limiting groove;20, servo motor;21, screw;22, limiting strip;31, mounting plate;32, mounting hole. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.

[0025] EMBODIMENT

[0026] Please refer to Figures 1-4The utility model provides a technical scheme: a digital printing nozzle dot number forming detection and calibration device, including detection calibration subassembly 101, detection calibration subassembly 101 includes two first linear module 11, second linear module 12, limit seat 13, mounting seat 14, detection camera 16, drive seat 18, four limit grooves 19, servo motor 20, two screw rods 21 and four limit strips 22,

[0027] Second linear module 12 is installed to the lower surface of the mover of two first linear module 11, and limit seat 13 is installed to the lower surface of the mover of second linear module 12, and the lower surface of drive seat 18 is provided with digital printing nozzle main part 15, and then the X axis direction position of digital printing nozzle main part 15 can be calibrated through first linear module 11, and the Y axis direction of digital printing nozzle main part 15 can be calibrated through second linear module 12,

[0028] Four limit strips 22 are fixedly connected to the inner side wall of limit seat 13 symmetrically, four limit grooves 19 are symmetrically formed in the outer side wall of drive seat 18, drive seat 18 is screwedly connected to the outer side wall of two screw rods 21, screw rod 21 is fixedly connected to the output shaft of servo motor 20, servo motor 20 is installed to the upper surface of limit seat 13, drive seat 18 is slidably connected to the inner side wall of limit seat 13, drive seat 18 is driven by screw rod 21 through thread, and drive seat 18 drives digital printing nozzle main part 15, and at this time, the Z axis direction of digital printing nozzle main part 15 can be calibrated,

[0029] Mounting seat 14 is fixedly connected to one side of limit seat 13, one side of mounting seat 14 is provided with detection camera 16, one side of limit seat 13 is provided with controller 17, and the signal end of controller 17 is connected with the signal end of first linear module 11, second linear module 12 and servo motor 20 respectively, and the detection of dot number forming can be realized through detection camera 16 and the control system of digital printing machine, including the following steps:

[0030] Image acquisition: detection camera 16 captures the picture of digital printing in real time, and image data is transmitted to the control system;

[0031] Image processing and analysis: the processing chip in the control system analyzes the image picture, identifies the dot and the blank area, calculates the proportion of dot area and blank area through image processing algorithm, calculates the dot number according to the proportion of dot area and blank area;

[0032] Signal generation and sending: the control system generates the adjustment signal of digital printing nozzle main part 15 in X, Y, Z axis direction according to the dot number, and then sends the adjustment signal to controller 17;

[0033] The digital printing nozzle body 15 position calibration: the controller 17 receives the adjustment signal, and controls the digital printing nozzle body 15 to carry out position adjustment; the controller 17 can calibrate the position of the digital printing nozzle body 15 by controlling the first linear module 11, the second linear module 12 and the servo motor 20 respectively, thereby ensuring the printing quality.

[0034] The model of the controller 17 is OHR-PR10.

[0035] In the embodiment, specifically, the limiting strip 22 is slidingly connected to the inner side wall of the limiting groove 19, and when the Z-axis direction position of the digital printing nozzle body 15 is calibrated, the limiting strip 22 and the limiting groove 19 can limit and guide the driving seat 18.

[0036] In the embodiment, specifically, the mounting plate 31 is arranged above the limiting seat 13, the two first linear modules 11 are symmetrically mounted to the lower surface of the mounting plate 31, and the mounting holes 32 are symmetrically arranged in the mounting plate 31, and the mounting plate 31 is used for mounting the whole on the digital printer.

[0037] In the embodiment, specifically, the detection camera 16 is arranged on one side of the digital printing nozzle body 15, thereby realizing real-time acquisition of the printing picture.

[0038] When in use, the detection camera 16 is used for capturing the picture of the digital printing in real time, the control system is used for analyzing the image picture, calculating the dot number and generating the adjustment signal of the digital printing nozzle body 15 in the X, Y and Z-axis directions, and then the adjustment signal is sent to the controller 17, the controller 17 is used for controlling the working states of the first linear module 11, the second linear module 12 and the servo motor 20 respectively, the X-axis direction position of the digital printing nozzle body 15 is calibrated through the first linear module 11, the Y-axis direction of the digital printing nozzle body 15 is calibrated through the second linear module 12, the servo motor 20 drives the screw rod 21 to rotate, the screw rod 21 drives the driving seat 18 through the thread, and the driving seat 18 drives the digital printing nozzle body 15, and the Z-axis direction of the digital printing nozzle body 15 is calibrated at this time.

[0039] Compared with the prior art, the utility model discloses the detection camera 16 is used for real-time detection, replaces the manual detection mode, improves the accuracy and working efficiency of detection, and through the cooperation of the first linear module 11, the second linear module 12 and the servo motor 20, the X, Y and Z-axis direction positions of the digital printing nozzle body 15 can be automatically calibrated, and the quality of the final printing is ensured.

[0040] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A digital printing head dot formation detection and calibration device, characterized by, The application relates to a detection calibration assembly (101) which comprises two first linear modules (11), a second linear module (12), a limiting seat (13), a mounting seat (14), a detection camera (16), a driving seat (18), four limiting grooves (19), a servo motor (20), two lead screws (21) and four limiting strips (22). The second linear module (12) is installed on the lower surface of the mover of the two first linear modules (11), the limiting seat (13) is installed on the lower surface of the mover of the second linear module (12), one side of the mounting seat (14) is fixedly connected to the limiting seat (13), the detection camera (16) is installed on one side of the mounting seat (14), the four limiting strips (22) are symmetrically fixedly connected to the inner side wall of the limiting seat (13), the four limiting grooves (19) are symmetrically formed in the outer side wall of the driving seat (18), the driving seat (18) is screw-connected to the outer side wall of the two lead screws (21), and the lead screw (21) is fixedly connected to the output shaft of the servo motor (20).

2. A device for detecting and calibrating the dot formation of a digital printing head according to claim 1, characterized in that, The servo motor (20) is installed on the upper surface of the limiting seat (13), and the driving seat (18) is slidingly connected to the inner side wall of the limiting seat (13).

3. A device for detecting and calibrating the dot formation of a digital printing head according to claim 1, characterized in that, The limiting strip (22) is slidingly connected to the inner side wall of the limiting groove (19), and the lower surface of the driving seat (18) is provided with a digital printing nozzle body (15).

4. A device for detecting and calibrating the dot formation of a digital printing head according to claim 1, characterized in that, One side of the limiting seat (13) is provided with a controller (17).

5. A device for detecting and calibrating the dot formation of a digital printing head according to claim 4, characterized in that, The limiting seat (13) is provided with a mounting plate (31) above, and the two first linear modules (11) are symmetrically mounted on the lower surface of the mounting plate (31).

6. A device for detecting and calibrating the dot formation of a digital printing head according to claim 5, characterized in that, The mounting plate (31) is symmetrically provided with mounting holes (32) in the inside.

7. A device for detecting and calibrating the dot formation of a digital printing head according to claim 6, characterized in that, The detection camera (16) is obliquely arranged on one side of the digital printing nozzle body (15).

8. A device for detecting and calibrating the dot formation of a digital printing head according to claim 7, characterized in that, The signal end of the controller (17) is connected with the signal end of the first linear module (11), the second linear module (12) and the servo motor (20).

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