Abnormal detection device for sprayer of photo machine

Abstract

The utility model belongs to the technical field of pictorial machine nozzle detection, and particularly relates to a pictorial machine nozzle anomaly detection device which comprises a first visual detection assembly arranged above and / or on the front side of a pictorial machine and a nozzle testing device located on the left side of the pictorial machine. The first visual inspection assembly is used for acquiring an image printed on the drawing paper by the spray head, and the first visual inspection assembly uploads the acquired image to the upper computer; according to the pictorial machine nozzle anomaly detection device, the image printed on the drawing paper by the nozzle is obtained through the first visual detection assembly, the obtained image is uploaded to the upper computer, the upper computer judges whether the nozzle is blocked or not according to the image, and if the nozzle is blocked, the nozzle is cleaned; and the cleaned spray head is moved to the spray head testing device for secondary testing so as to judge whether the cleaned spray head is still blocked or not, so that the waste of the printing medium is effectively reduced, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photo machine nozzle detection technical field especially relates to a photo machine nozzle abnormality detection device. BACKGROUND

[0002] The photo machine is a kind of large-scale printing equipment for spraying various color patterns on special materials by nozzle, and is generally used in advertising, graphics, CAD and other industries.

[0003] In the ink-jet printer, the nozzle is affected by impurities in ink, dust in air, environmental temperature, humidity and other factors during printing, resulting in abnormality of the nozzle hole, and the nozzle hole is often blocked.When the nozzle is blocked, it is necessary to detect and determine which nozzle hole position is blocked and other abnormalities in the nozzle so as to clean the nozzle or adjust the ink structure. Especially for some printing requirements with very long image length or long time unattended, if the abnormality of some nozzle holes in the nozzle is not found and handled in time, the printing effect will be affected, the printing quality will be reduced, and even the printing waste will be caused.

[0004] The conventional method for detecting abnormal nozzle hole is to acquire the printing image synchronously during printing of the nozzle, compare the printing image with the standard color card, if there is color difference between the printing image and the standard color card, it indicates that the nozzle is blocked, then the printer prints a special detection image, and then the optical recognition character of the detection image is acquired to indicate the ID number of the corresponding printing channel and the position of the channel detection image corresponding to the channel, and the channel detection image is used to detect whether the nozzle hole is abnormal, and the specific abnormal nozzle hole is determined, then the abnormal nozzle hole is cleaned, and after cleaning, normal printing work is continued. However, the abnormal nozzle hole is cleaned in sequence, and the blockage problem cannot be completely solved, which leads to that the printed image is still not qualified when the cleaned nozzle is directly used for printing, which causes waste of materials and affects the overall printing progress. UTILITY MODEL CONTENT

[0005] To solve the problems in the prior art, the utility model provides a photo machine nozzle abnormality detection device,

[0006] The utility model technical scheme is as follows:

[0007] The utility model provides a photo printer nozzle abnormality detection device, including first visual detection component who sets above and / or front side of photo printer and the nozzle test device who is located photo printer left side, first visual detection component is used to obtain the image that nozzle prints on drawing paper, first visual detection component will obtain the image and upload to host computer, nozzle test device is used to the secondary test to the nozzle after cleaning to judge whether the nozzle after cleaning is blocked.

[0008] Further, the nozzle test device includes a first paper tube and a second paper tube respectively arranged on the front and rear sides of the photo printer, and the first paper tube is driven to rotate by a stepping motor.

[0009] Further, the printing paper arranged on the second paper tube is wound on the first paper tube through the photo printer.

[0010] Further, the photo printer is fixedly connected with a fixed plate on the side surface, and the fixed plate is provided with a second visual detection component.

[0011] Further, the first visual detection component and the second visual detection component are the same in structure and each include a camera, the lower end of the camera is provided with a detachable lens, and the lower end of the lens is provided with a ring-shaped light supplement lamp.

[0012] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0013] The first visual detection component obtains the image printed by the nozzle on the drawing paper, and uploads the obtained image to the host computer, the host computer judges whether the nozzle is blocked according to the image, if the nozzle is blocked, the nozzle is cleaned, and the cleaned nozzle is moved to the nozzle test device for secondary testing to judge whether the cleaned nozzle is still blocked, thereby effectively reducing the waste of printing medium and improving the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic diagram of the photo printer nozzle abnormality detection device;

[0015] Figure 2 It is an internal structure diagram of the photo printer nozzle abnormality detection device;

[0016] Figure 3 It is a structure schematic diagram of the nozzle test device;

[0017] Figure 4 It is a structure schematic diagram of the visual detection component;

[0018] In the figure: 7, a nozzle testing device, 71, a first paper tube, 72, a stepping motor, 73, printing paper, 74, a second paper tube, 8, a first visual inspection assembly, 81, a camera, 82, a lens, 83, a fill-in light, 9, a fixed plate, 10, a special-shaped plate, 11, a second visual inspection assembly. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Referring to Figures 1-3 A photo printer nozzle abnormality detection device, comprising a first visual inspection assembly 8 arranged above and / or on the front side of the photo printer and a nozzle testing device 7 arranged on the left side of the photo printer, the first visual inspection assembly 8 is used to acquire the image printed by the nozzle on the drawing paper, the first visual inspection assembly 8 uploads the acquired image to the upper computer, the upper computer analyzes the image uploaded by the first visual inspection assembly 8 to determine whether the nozzle printing the current image is blocked, if the nozzle is blocked, the upper computer controls the nozzle to move to the cleaning position (the nozzle cleaning device of the photo printer and the arrangement mode are prior art, which will not be described here) on the right side of the photo printer to clean the nozzle; the nozzle testing device 7 is used to test the cleaned nozzle again to determine whether the cleaned nozzle is blocked;

[0021] The side surface of the photo printer is fixedly connected with a fixed plate 9, the nozzle testing device 7 comprises a first paper tube 71 and a second paper tube 74 arranged on the front and rear sides of the photo printer respectively, the first paper tube 71 is driven to rotate by a stepping motor 72; one end of the first paper tube 71 is rotatably connected to the fixed plate 9, and the other end is rotatably connected to the base of the photo printer, the stepping motor 72 is fixedly connected to the fixed plate 9, and the output shaft of the stepping motor 72 is drivingly connected to one end of the first paper tube 71 through a synchronous belt or chain, the second paper tube 74 is installed in the same horizontal plane as the first paper tube 71, and the first paper tube 71 and the second paper tube 74 are symmetrically arranged on the front and rear sides of the workbench of the photo printer; the printing paper 73 arranged on the second paper tube 74 is wound on the first paper tube 71 through the upper side of the printing panel 4;

[0022] In the initial state, the second paper tube 74 is wound with the printing paper 73, and the end of the printing paper 73 is pulled upwards to pass through the workbench of the photo printer (i.e. between the printing panel and the paper pressing wheel of the prior art photo printer, which ensures the adhesion of the printing paper to the workbench and prevents the pattern on the printing paper from being incompletely printed during testing) and is bonded or fixed in other existing fixing manner on the first paper tube 71; the stepping motor 72 is started, and the output end of the stepping motor 72 drives the first paper tube 71 to rotate, and the second paper tube 74 rotates with the pulling force of the printing paper 73 to release the new blank area of the printing paper 73 to the printing panel 4;

[0023] The stepping motor 72, the second visual detection assembly 11 and the upper computer are in communication connection, the second visual detection assembly 11 obtains the image information printed by the cleaned nozzle on the printing paper 73 and feeds back the image information to the upper computer, and the upper computer judges whether the cleaned nozzle is still blocked according to the image information; the upper computer is the controller inherent to the photo printer, and can also be the central controller of the printing production line.

[0024] As shown in Figure 4 The first visual detection assembly 8 and the second visual detection assembly 11 are the same in structure and each include a camera 81, the lower end of the camera 81 is provided with a detachable lens 82, and the lower end of the lens 82 is provided with a ring-shaped light supplement lamp 83; the upper end of the fixed plate 9 is fixedly connected with an n-shaped plate, the vertical plate on the n-shaped plate is fixedly connected with a special-shaped plate 10, the upper end of the special-shaped plate 10 is fixedly connected with the camera 81, the light supplement lamp 83 is fixedly connected at the bottom end of the special-shaped plate 10, and the inner ring of the light supplement lamp 83 is opposite to the lens, and the camera 81 of the second visual detection assembly 11 is located directly above the printing paper 73.

[0025] In the utility model, the upper computer is installed with the software of the detection graph processing of the printing image of the photo printer and the nozzle abnormality detection, the software can be directly obtained by market purchase; the first visual detection assembly 8 acquires the image printed on the paper of the printer in real time and uploads the image to the upper computer, the upper computer compares the collected image with the stored standard image, if the collected image is inconsistent with the standard image, it indicates that the nozzle is blocked, and the upper computer controls the printer to stop the printing work;

[0026] Then the host computer controls the nozzle to print a detection chart, the first visual detection assembly 8 acquires the printed detection chart in real time and uploads the detection chart to the host computer, the host computer determines the specific nozzle that is blocked after processing and analyzing the detection chart, then the host computer controls the nozzle to move to the cleaning position on the right side of the printer to clean the blocked nozzle, after cleaning, the controller controls the nozzle to move to the nozzle testing device 7 on the left side of the printer, the stepping motor 72 is started to drive the first paper cylinder 71 to rotate, the printing paper 73 on the second paper cylinder 74 is conveyed forward, in this process, the cleaned nozzle prints a new detection chart on the printing paper 73, and the second visual detection assembly 11 synchronously acquires the new detection chart and uploads the new detection chart to the host computer, the host computer processes and analyzes the new detection chart to determine whether the cleaned nozzle is still blocked, if the cleaned nozzle is still blocked, the nozzle is cleaned again, after cleaning, the second test is performed again, until the second test shows that the nozzle is not blocked, the printer can be started to continue printing.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application;

[0029] Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present application is described in the form of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A printer printhead malfunction detection device, characterized in that: It includes a first visual inspection component (8) disposed above and / or in front of the printer and a printhead testing device (7) located on the left side of the printer. The first visual inspection component (8) is used to acquire the image printed by the printhead on the paper and upload the acquired image to the host computer. The printhead testing device (7) is used to perform a secondary test on the cleaned printhead to determine whether the cleaned printhead is clogged.

2. The inkjet head malfunction detection device for a photo printer according to claim 1, characterized in that: The printhead testing device (7) includes a first paper tube (71) and a second paper tube (74) respectively disposed on the front and rear sides of the printer. The first paper tube (71) is driven to rotate by a stepper motor (72).

3. The inkjet head malfunction detection device for a photo printer according to claim 2, characterized in that: The printing paper (73) placed on the second paper tube (74) passes through the printer and is wound around the first paper tube (71).

4. The inkjet head malfunction detection device for a photo printer according to claim 1, characterized in that: A fixing plate (9) is fixedly connected to the side of the photo printer, and a second visual detection component (11) is on the fixing plate (9).

5. The inkjet head malfunction detection device for a photo printer according to claim 1, characterized in that: The first visual detection component (8) and the second visual detection component (11) have the same structure, both including a camera (81). The lower end of the camera (81) is provided with a detachable lens (82), and the lower end of the lens (82) is provided with a ring-shaped fill light (83).

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