A nuclear industry identification label manufacturing and detecting device

By designing a nuclear industry signage production and testing device, and utilizing UV inkjet printing equipment and robotic arms to automate the printing and testing of signs, the problem of long and inefficient on-site signage management processes in the nuclear industry has been solved, thereby improving the efficiency of signage replacement and reducing costs.

CN117734311BActive Publication Date: 2026-06-09RES INST OF NUCLEAR POWER OPERATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RES INST OF NUCLEAR POWER OPERATION
Filing Date
2023-12-28
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The management process for on-site signage in the nuclear industry is lengthy and inefficient. The replacement cycle for signage is long and costly, and the frequent use of temporary signage results in a large workload.

Method used

Design a nuclear industry signage production and inspection device, including a UV inkjet printer, a robotic arm, a camera, and a host computer, to realize the automatic and rapid production and quality inspection of signs. Through the movement of the robotic arm and the positioning and recognition of the camera, the automated printing and inspection of signs are realized.

Benefits of technology

It enables the automated and rapid production and quality inspection of on-site signs and markers in the nuclear industry, reducing the workload and cost of sign replacement and improving the efficiency of sign management.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a nuclear industry identification label manufacturing and detecting device, which comprises a cabinet (1), an upper computer installed on the cabinet (1), a UV spraying device (2) in communication with the upper computer, a rotary stock bin (4), a mechanical arm suction disc (5), a camera (7), a mechanical arm (9), a spraying tray (10), a heavy material preventing suction disc (11), a mechanical arm guide rail (3), the rotary stock bin (4), a waste material bin (6) and a discharging bin (12). The upper computer controls the hardware in communication with the upper computer to manufacture and detect the identification label. The middle part of the UV spraying device (2) is movably connected with the spraying tray (10) along the Y axis. The mechanical arm (9) is slidably installed on the mechanical arm guide rail (3), and the tail end is provided with the mechanical arm suction disc (5) and can move along the X axis, the Y axis and the Z axis on the mechanical arm guide rail (3). The nuclear industry identification label manufacturing and detecting device can realize automatic and rapid manufacturing and quality inspection of the nuclear industry identification label.
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Description

Technical Field

[0001] This invention relates to the field of nuclear industry signage production and testing technology, and in particular to a nuclear industry signage production and testing device. Background Technology

[0002] In the nuclear industry, all work is located and operated based on on-site signage. Human error resulting from incorrect equipment operation has high consequences, therefore, the management of on-site signage in nuclear industry settings is crucial. Currently, the centralized outsourcing of signage production leads to long process times; the replacement cycle for lost or damaged on-site signage can be as long as 50 days. In some radiation control areas, signage replacement can only be carried out during major overhauls, resulting in a short window for replacement and high costs if this window is missed. Furthermore, because official signage cannot be obtained immediately, temporary paper signage is generally used during the gap between the damage of old signage and the installation of new signage. Once the official signage is received, the temporary signage is replaced. Under this method, each signage replacement involves two stages of installation: "temporary" and "official," resulting in a heavy workload for on-site personnel. Summary of the Invention

[0003] Therefore, it is necessary to provide a nuclear industry signage production and testing device to address the problems of long and inefficient on-site signage management processes in the nuclear industry, so as to realize the automatic and rapid production and quality inspection of on-site signs in the nuclear industry.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A nuclear industry signage production and testing device includes a cabinet and, mounted on the cabinet, a UV inkjet printing device, a robotic arm guide rail, a rotating hopper, a robotic arm suction cup, a waste bin, a camera, a robotic arm, a printing tray, a heavy-duty suction cup, a discharge bin, and a host computer. The host computer communicates with the UV inkjet printing device, the rotating hopper, the robotic arm suction cup, the camera, the robotic arm, the printing tray, and the heavy-duty suction cup, respectively, to control the hardware communicating with it for signage production and testing. The camera is mounted on the top of the cabinet above the UV inkjet printing device via a camera bracket. The rotating hopper is installed on... The UV printing device is installed on the right side of the bottom plate in the middle of the cabinet, with a printing tray connected to it that moves back and forth along the Y-axis in the middle. A waste bin, a discharge bin, and an anti-weight suction cup are located between the rotating material bin and the UV printing device on the bottom plate in the middle of the cabinet. The waste bin and discharge bin are located on either side of the anti-weight suction cup. The robotic arm guide rail is installed on the top of the cabinet above the rotating material bin, waste bin, and discharge bin. The robotic arm is slidably mounted on the robotic arm guide rail and can move along the X, Y, and Z axes on the robotic arm guide rail. A robotic arm suction cup is installed at the bottom end of the robotic arm.

[0006] Furthermore, the host computer is equipped with a touch screen, which contains touch software and control software. The touch software is used for data display and user input. The control software is used to control the hardware communicating with the touch screen to produce and test signs. The nuclear industry sign production and testing device also includes an operation knob and indicator lights. The operation knob is used for overall device power-on control, and the indicator lights are used to display the device hardware status. The hardware communicating with the touch screen includes a UV inkjet printing device, a rotating hopper, a robotic arm suction cup, a camera, a robotic arm, an inkjet printing tray, an anti-weight suction cup, an operation knob, and indicator lights.

[0007] Furthermore, the control software is used to control the hardware communicating with the touchscreen to create and inspect signs, including the following steps:

[0008] The control software generates or receives sign printing instructions, performs sign printing template matching, and generates sign printing images.

[0009] The control software controls the robotic arm to move to the corresponding blank label in the rotating hopper, controls the robotic arm suction cup to adsorb the corresponding blank label through negative pressure, controls the robotic arm to move the blank label to the anti-weight suction cup for secondary adsorption and lift, controls the UV inkjet printing device to extend the inkjet tray, and controls the robotic arm to place the blank label on the inkjet tray.

[0010] The control software controls the camera to perform positioning detection on the blank sign on the printing tray to obtain the positioning information of the blank sign, and the camera uploads the positioning information of the blank sign to the control software.

[0011] The control software receives the positioning information of the blank sign uploaded by the camera, adjusts the blank sign printing mark according to the positioning information to obtain the adjusted blank sign printing mark; the control software controls the UV inkjet printing device to print the mark on the blank sign placed on the inkjet printing tray to make the sign.

[0012] The control software controls the camera to identify the signs on the printing tray and obtain the identification results; the camera uploads the identification results to the control software.

[0013] The control software receives the identification results of the signs uploaded by the camera, and controls the robotic arm to transport the signs to the discharge bin or waste bin based on the identification results.

[0014] Furthermore, if the identification result of the sign is qualified, the control software controls the robotic arm to transport the sign to the discharge hopper and release it; if the identification result of the sign is unqualified, the control software controls the robotic arm to transport the sign to the waste hopper and release it.

[0015] Furthermore, the touch software provides a manual input box for manually inputting the identification information for printing blank signs and sending the identification information to the control software; the control software receives the identification information for printing blank signs sent by the touch software and generates a sign printing instruction based on the identification information; the control software can also communicate with other software via the network and receive sign printing instructions issued by other software.

[0016] Furthermore, the touchscreen is an industrial control computer with a touch display; the indicator lights include a device power-on indicator light, a device fault indicator light, a UV inkjet printing device communication indicator light, and a robotic arm communication indicator light.

[0017] Furthermore, the camera performs positioning detection on the blank sign placed on the printing tray to obtain the positioning information of the blank sign, including the following steps:

[0018] The camera uses an edge detection algorithm to identify the edges of the blank sign and the printing tray. Based on the relative relationship between the edges of the blank sign and the printing tray, it calculates the positioning information of the blank sign placed on the printing tray and uploads it to the control software to complete the positioning detection of the blank sign placed on the printing tray. The positioning information of the blank sign placed on the printing tray includes the size, relative position, and relative rotation angle of the blank sign placed on the printing tray.

[0019] Furthermore, the camera identifies the edges of the blank sign and the printing tray using an edge detection algorithm, calculates the distance and coordinates between the edge of the blank sign and the edge of the printing tray, generates the area information to be printed on the blank sign, and uploads it to the control software; the control software fills in the markings to be printed on the blank sign according to the area information to be printed on the blank sign, thus adjusting the markings to be printed on the blank sign.

[0020] Furthermore, the camera identifies and marks the signs placed on the printing tray, including the following steps:

[0021] The camera uses an OCR text recognition algorithm to identify the markings on signs and signboards;

[0022] The camera uses a similarity algorithm to identify whether the markings on the signboard match the markings printed on the blank signboard;

[0023] If the markings on the sign match the markings to be printed on the blank sign, the sign is deemed qualified.

[0024] If the markings on the sign do not match the markings to be printed on the blank sign, the sign is deemed unqualified.

[0025] Furthermore, the robotic arm is equipped with an X-axis servo motor, a Y-axis servo motor, and a Z-axis servo motor. The X-axis servo motor drives the robotic arm to move freely along the X-axis on the robotic arm guide rail, the Y-axis servo motor drives the robotic arm to move freely along the Y-axis on the robotic arm guide rail, and the Z-axis servo motor drives the robotic arm to move freely along the Z-axis on the robotic arm guide rail.

[0026] Furthermore, the anti-weight suction cup is a square structure with a length of 200mm and a width of 200mm, equipped with a porous negative pressure suction cup and a contact switch; the contact switch is a push-button switch device. When the robotic arm suction cup moves a blank label onto the anti-weight suction cup and then moves it away, if a heavy object is present, the blank label of the heavy object at the bottom is attracted to the anti-weight suction cup by the porous negative pressure suction cup. At this time, the contact switch is pressed by the blank label attracted to the anti-weight suction cup, and the contact switch reports to the control software that there is a label on the anti-weight suction cup; the heavy object is two blank labels stuck together and sucked up by the robotic arm suction cup.

[0027] Furthermore, the rotating hopper is a disc structure with a diameter of 700mm, used to store up to 10 different sizes of blank labels.

[0028] Furthermore, the waste bin is a square trough structure with a length of 300mm and a width of 200mm, used to store labels indicating that the product is defective after production is completed.

[0029] In this embodiment, the discharge bin is a square trough structure with a length of 300mm and a width of 200mm, used to store production completion and qualification labels.

[0030] Furthermore, the camera is an industrial-grade camera.

[0031] Furthermore, supplementary lights are installed on the mounting holes on both sides of the camera bracket at the top of the cabinet; the supplementary lights are industrial-grade supplementary lights used to provide supplementary lighting for the camera and prevent interference from shadows and high brightness; the supplementary lights are controlled by an independent switch and are constantly lit when the device is operating normally.

[0032] Furthermore, the UV printing device prints images on the surface of blank signs using ultraviolet light curing.

[0033] Beneficial technical effects of the present invention:

[0034] The nuclear industry signage production and testing device of the present invention enables automatic and rapid production and quality inspection of on-site signs in the nuclear industry. Attached Figure Description

[0035] Figure 1This is a front view of the nuclear industry signage manufacturing and testing device of the present invention;

[0036] Figure 2 A schematic diagram of the internal structure of the nuclear industry signage manufacturing and testing device of the present invention;

[0037] Figure 3 Side view of the nuclear industry signage manufacturing and testing device of the present invention;

[0038] Figure 4 This is a schematic diagram of camera positioning and detection.

[0039] In the diagram: 1. Cabinet; 2. UV inkjet printing device; 3. Robotic arm guide rail; 4. Rotary hopper; 5. Robotic arm suction cup; 6. Waste bin; 7. Camera; 8. Fill light; 9. Robotic arm; 10. Printing tray; 11. Anti-weight suction cup; 12. Discharge bin; 13. Touch screen; 14. Operation knob; 15. Indicator light; 16. Blank label. Detailed Implementation

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be understood that the terms "left end", "right end", "above", "below", "outer side", "inner side", etc., 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 this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] See Figure 1-4This embodiment provides a nuclear industry signage production and testing device, including a cabinet 1 and a UV inkjet printing device 2, a robotic arm guide rail 3, a rotating hopper 4, a robotic arm suction cup 5, a waste bin 6, a camera 7, a robotic arm 9, a printing tray 10, an anti-weight suction cup 11, a discharge bin 12, and a host computer mounted on the cabinet 1. The host computer communicates with the UV inkjet printing device 2, the rotating hopper 4, the robotic arm suction cup 5, the camera 7, the robotic arm 9, the printing tray 10, and the anti-weight suction cup 11, and controls the hardware communicating with it to perform signage production and testing. The camera 7 is mounted on the top of the cabinet 1 above the UV inkjet printing device 2 via a camera bracket. The rotating hopper 4... The UV printing device 2 is installed on the left side of the bottom plate in the middle of the cabinet 1; the UV printing device 2 is installed on the right side of the bottom plate in the middle of the cabinet 1, and the printing tray 10 is connected to it by moving back and forth along the Y-axis in the middle part; a waste bin 6, a discharge bin 12 and an anti-weight suction cup 11 are provided between the rotating material bin 4 and the UV printing device 2 on the bottom plate in the middle of the cabinet 1, and the waste bin 6 and the discharge bin 12 are located on both sides of the anti-weight suction cup 11; the robotic arm guide rail 3 is installed on the top of the cabinet 1 above the rotating material bin 4, the waste bin 6 and the discharge bin 12; the robotic arm 9 is slidably installed on the robotic arm guide rail 3 and can move along the X-axis, Y-axis and Z-axis on the robotic arm guide rail 3; a robotic arm suction cup 5 is installed at the bottom end of the robotic arm 9.

[0043] In this embodiment, the host computer is equipped with a touch screen 13, which has touch software and control software. The touch software is used for data display and user input. The control software is used to control the hardware communicating with the touch screen 13 to produce and test signs. The nuclear industry sign production and testing device also includes an operation knob 14 and an indicator light 15. The operation knob 14 is used for overall device power-on control, and the indicator light 15 is used to display the device hardware status. The hardware communicating with the touch screen 13 includes a UV inkjet printing device 2, a rotating hopper 4, a robotic arm suction cup 5, a camera 7, a robotic arm 9, an inkjet printing tray 10, an anti-weight material suction cup 11, an operation knob 14, and an indicator light 15.

[0044] In this embodiment, the control software is used to control the hardware communicating with the touch screen 13 to create and detect signs, including the following steps:

[0045] The control software generates or receives sign printing instructions, performs sign printing template matching, and generates sign printing images.

[0046] The control software controls the robotic arm 9 to move to the corresponding blank label 16 in the rotating hopper 4, controls the robotic arm suction cup 5 to adsorb the corresponding blank label 16 through negative pressure, controls the robotic arm 9 to move the blank label 16 to the anti-weight suction cup 11 for secondary adsorption and lifting, controls the UV inkjet printing device 2 to extend the inkjet tray 10, and controls the robotic arm 9 to place the blank label 16 on the inkjet tray 10.

[0047] The control software controls the camera 7 to perform positioning detection on the blank label 16 on the printing tray 10 to obtain the positioning information of the blank label 16, and the camera 7 uploads the positioning information of the blank label 16 to the control software.

[0048] The control software receives the positioning information of the blank sign 16 uploaded by the camera 7, and adjusts the blank sign printing mark according to the positioning information of the blank sign 16 to obtain the adjusted blank sign printing mark; the control software controls the UV inkjet printing device 2 to print the mark on the blank sign 16 placed on the inkjet tray 10 to make the sign.

[0049] The control software controls the camera 7 to identify the signs on the printing tray 10 and obtain the identification results; the camera 7 uploads the identification results to the control software.

[0050] The control software receives the identification results of the sign uploaded by the camera 7, and controls the robotic arm 9 to transport the sign to the discharge bin 12 or the waste bin 6 according to the identification results.

[0051] In this embodiment, if the identification result of the sign is qualified, the control software controls the robotic arm 9 to transport the sign to the discharge bin 12 and release it; if the identification result of the sign is unqualified, the control software controls the robotic arm 9 to transport the sign to the waste bin 6 and release it.

[0052] In this embodiment, the touch software provides a manual input box for manually inputting the identification information to be printed on the blank sign 16 and sending the identification information to the control software; the control software receives the identification information to be printed on the blank sign 16 sent by the touch software and generates a sign printing instruction based on the identification information; the control software can also communicate with other software via network and receive sign printing instructions issued by other software.

[0053] In this embodiment, the touch screen 13 is an industrial control computer with a touch display; the indicator lights 15 include a device power-on indicator light, a device fault indicator light, a UV inkjet printing device 2 communication indicator light, and a robotic arm 9 communication indicator light.

[0054] In this embodiment, the camera 7 performs positioning detection on the blank label 16 placed on the printing tray 10 to obtain the positioning information of the blank label 16, including the following steps:

[0055] The camera 7 uses an edge detection algorithm to identify the edges of the blank sign 16 and the printing tray 10. Based on the relative relationship between the edges of the blank sign 16 and the printing tray 10, it calculates the positioning information of the blank sign 16 placed on the printing tray 10 and uploads it to the control software to complete the positioning detection of the blank sign 16 placed on the printing tray 10. The positioning information of the blank sign 16 placed on the printing tray 10 includes the size, relative position, and relative rotation angle of the blank sign 16 placed on the printing tray 10.

[0056] In this embodiment, the camera 7 uses an edge detection algorithm to identify the edge of the blank sign 16 and the edge of the printing tray 10, calculates the distance and coordinate information of the edge of the blank sign 16 relative to the edge of the printing tray 10, generates the area information of the blank sign 16 to be printed, and uploads it to the control software; the control software fills in the logo to be printed on the blank sign 16 according to the area information of the blank sign 16 to complete the adjustment of the logo to be printed on the blank sign.

[0057] In this embodiment, the camera 7 identifies the labels placed on the printing tray 10, including the following steps:

[0058] Camera 7 uses an OCR text recognition algorithm to identify the markings on signs and signs;

[0059] Camera 7 uses a similarity algorithm to identify whether the logo on the signboard matches the logo printed on the blank signboard 16;

[0060] If the markings on the sign are consistent with the markings to be printed on the blank sign 16, the sign is deemed qualified.

[0061] If the markings on the sign are inconsistent with the markings to be printed on the blank sign 16, the sign is deemed unqualified.

[0062] In this embodiment, the robotic arm 9 is equipped with an X-axis servo motor, a Y-axis servo motor and a Z-axis servo motor. The X-axis servo motor drives the robotic arm 9 to move freely along the X-axis on the robotic arm guide rail 3, the Y-axis servo motor drives the robotic arm 9 to move freely along the Y-axis on the robotic arm guide rail 3, and the Z-axis servo motor drives the robotic arm 9 to move freely along the Z-axis on the robotic arm guide rail 3.

[0063] In this embodiment, the anti-heavy material suction cup 11 is a square structure with a length of 200mm and a width of 200mm, equipped with a porous negative pressure suction cup and a contact switch. The contact switch is a push-button switch device. When the robotic arm suction cup 5 moves the blank label 16 onto the anti-heavy material suction cup 11 and then moves it away, if heavy material is present, the blank label 16 of the heavy material at the bottom is attracted to the anti-heavy material suction cup 11 by the porous negative pressure suction cup. At this time, the contact switch is pressed by the blank label 16 attracted to the anti-heavy material suction cup 11, and the contact switch reports to the control software that there is a label on the anti-heavy material suction cup 11. The heavy material is two blank labels 16 stuck together and sucked up by the robotic arm suction cup 5.

[0064] In this embodiment, the rotating hopper 4 is a disc structure with a diameter of 700mm, used to store up to 10 different sizes of blank labels 16.

[0065] In this embodiment, the waste bin 6 is a square trough structure with a length of 300mm and a width of 200mm, used to store defective labels indicating that production has been completed.

[0066] In this embodiment, the discharge bin 12 is a square trough structure with a length of 300mm and a width of 200mm, used to store production completion and qualification labels.

[0067] In this embodiment, the camera 7 is an industrial-grade camera.

[0068] In this embodiment, supplementary lights 8 are installed on the mounting holes on both sides of the camera bracket at the top of the cabinet 1; the supplementary lights 8 are industrial-grade supplementary lights used to supplement the light of the camera 7 and prevent shadows and high brightness interference; the supplementary lights 8 are controlled by an independent switch and are always on when the device is operating normally.

[0069] In this embodiment, the UV inkjet printing device 2 completes the printing of the image on the surface of the blank sign 16 by ultraviolet light curing.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A nuclear industry signage manufacturing and testing device, characterized in that, The system includes a cabinet (1) and a UV inkjet printing device (2), a robotic arm guide rail (3), a rotating hopper (4), a robotic arm suction cup (5), a waste bin (6), a camera (7), a robotic arm (9), an inkjet printing tray (10), a heavy-duty suction cup (11), a discharge bin (12), and a host computer mounted on the cabinet (1). The host computer communicates with the UV inkjet printing device (2), the rotating hopper (4), the robotic arm suction cup (5), the camera (7), the robotic arm (9), the inkjet printing tray (10), and the heavy-duty suction cup (11) to control the hardware communicating with it for the production and testing of signs and labels. The camera (7) is mounted on the top of the cabinet (1) above the UV inkjet printing device (2) via a camera bracket. The rotating hopper (4) is mounted on the bottom of the middle part of the cabinet (1). Left side of the plate; the UV inkjet printing device (2) is installed on the right side of the bottom plate in the middle of the cabinet (1), and the middle part is connected to the inkjet printing tray (10) by moving back and forth along the Y-axis; a waste bin (6), a discharge bin (12) and an anti-heavy material suction cup (11) are provided between the rotating material bin (4) and the UV inkjet printing device (2) on the bottom plate in the middle of the cabinet (1), and the waste bin (6) and the discharge bin (12) are located on both sides of the anti-heavy material suction cup (11); the robotic arm guide rail (3) is installed on the top of the cabinet (1) above the rotating material bin (4), the waste bin (6) and the discharge bin (12); the robotic arm (9) is slidably installed on the robotic arm guide rail (3) and can move along the X-axis, Y-axis and Z-axis on the robotic arm guide rail (3); the robotic arm suction cup (5) is installed at the bottom end of the robotic arm (9). The anti-heavy material suction cup (11) is equipped with a multi-hole negative pressure suction cup and a contact switch; the contact switch is a push-button switch device. When the robotic arm suction cup (5) moves the blank label (16) onto the anti-heavy material suction cup (11) and then moves it away, if heavy material occurs, the blank label (16) of the heavy material at the bottom is attracted to the anti-heavy material suction cup (11) through the multi-hole negative pressure suction cup. At this time, the contact switch is pressed by the blank label (16) attracted to the anti-heavy material suction cup (11), and the contact switch reports to the control software that there is a label on the anti-heavy material suction cup (11); the heavy material is two blank labels (16) stuck together and sucked up by the robotic arm suction cup (5); The host computer is equipped with a touch screen (13), and the touch screen (13) is equipped with touch software and control software; the touch software is used for data display and user input; the control software is used to control the hardware communicating with the touch screen (13) to make and test signs, including the following steps: The control software generates or receives sign printing instructions, performs sign printing template matching, and generates sign printing images. The control software controls the robotic arm (9) to move to the corresponding blank label (16) in the rotating hopper (4), controls the robotic arm suction cup (5) to adsorb the corresponding blank label (16) through negative pressure, controls the robotic arm (9) to move the blank label (16) to the anti-weight material suction cup (11) for secondary adsorption and lifting, controls the UV inkjet printing device (2) to extend the inkjet tray (10), and controls the robotic arm (9) to place the blank label (16) on the inkjet tray (10); The control software controls the camera (7) to perform positioning detection on the blank label (16) on the printing tray (10) to obtain the positioning information of the blank label (16), and the camera (7) uploads the positioning information of the blank label (16) to the control software. The control software receives the positioning information of the blank sign (16) uploaded by the camera (7), and adjusts the blank sign printing mark according to the positioning information of the blank sign (16) to obtain the adjusted blank sign printing mark; the control software controls the UV inkjet printing device (2) to print the mark on the blank sign (16) placed on the inkjet tray (10) according to the adjusted blank sign printing mark to make the sign. The control software controls the camera (7) to identify the signs on the printing tray (10) and obtain the identification results of the signs; the camera (7) uploads the identification results of the signs to the control software; The control software receives the identification result of the sign uploaded by the camera (7); if the identification result of the sign is qualified, the control software controls the robotic arm (9) to transport the sign to the discharge bin (12) and release it; if the identification result of the sign is unqualified, the control software controls the robotic arm (9) to transport the sign to the waste bin (6) and release it.

2. The nuclear industry signage production and testing device according to claim 1, characterized in that, It also includes an operation knob (14) and an indicator light (15). The operation knob (14) is used for overall power-on control of the device, and the indicator light (15) is used to display the hardware status of the device. The hardware that communicates with the touch screen (13) includes a UV inkjet printer (2), a rotating hopper (4), a robotic arm suction cup (5), a camera (7), a robotic arm (9), an inkjet tray (10), an anti-heavy material suction cup (11), an operation knob (14), and an indicator light (15).

3. The nuclear industry signage production and testing device according to claim 1, characterized in that, The touch software provides a manual input box for manually inputting the identification information of the blank sign (16) and sending the identification information of the blank sign (16) to the control software; the control software receives the identification information of the blank sign (16) sent by the touch software and generates a sign printing instruction based on the identification information of the blank sign (16).

4. The nuclear industry signage production and testing device according to claim 1, characterized in that, The camera (7) performs positioning detection on the blank sign (16) placed on the printing tray (10) to obtain the positioning information of the blank sign (16), including the following steps: The camera (7) identifies the edge of the blank sign (16) and the edge of the printing tray (10) through an edge detection algorithm. Based on the relative relationship between the edge of the blank sign (16) and the edge of the printing tray (10), it calculates the positioning information of the blank sign (16) placed on the printing tray (10) and uploads it to the control software to complete the positioning detection of the blank sign (16) placed on the printing tray (10). The positioning information of the blank sign (16) placed on the printing tray (10) includes the size, relative position and relative rotation angle of the blank sign (16) placed on the printing tray (10).

5. The nuclear industry signage production and testing device according to claim 4, characterized in that, The camera (7) identifies the edge of the blank sign (16) and the edge of the printing tray (10) through an edge detection algorithm, calculates the distance and coordinate information of the edge of the blank sign (16) relative to the edge of the printing tray (10), generates the area information of the blank sign (16) to be printed and uploads it to the control software; the control software fills the blank sign with the markings to be printed according to the area information of the blank sign (16) to complete the adjustment of the blank sign printing markings.

6. The nuclear industry signage production and testing device according to claim 1, characterized in that, The camera (7) identifies the signs placed on the printing tray (10) by means of the following steps: The camera (7) uses an OCR text recognition algorithm to identify the signage; The camera (7) uses a similarity algorithm to identify whether the logo on the sign and the logo to be printed on the blank sign (16) are consistent; If the markings on the sign are consistent with the markings to be printed on the blank sign (16), then the sign is deemed qualified. If the markings on the sign are inconsistent with the markings to be printed on the blank sign (16), the sign is deemed unqualified.

7. The nuclear industry signage production and testing device according to claim 1, characterized in that, The robotic arm (9) is equipped with an X-axis servo motor, a Y-axis servo motor and a Z-axis servo motor. The X-axis servo motor drives the robotic arm (9) to move freely along the X-axis on the robotic arm guide rail (3). The Y-axis servo motor drives the robotic arm (9) to move freely along the Y-axis on the robotic arm guide rail (3). The Z-axis servo motor drives the robotic arm (9) to move freely along the Z-axis on the robotic arm guide rail (3).

8. The nuclear industry signage production and testing device according to claim 1, characterized in that, The supplementary lights (8) are installed on the mounting holes on both sides of the camera bracket at the top of the cabinet (1) to provide supplementary lighting for the camera (7); the supplementary lights (8) are controlled by an independent switch and are always on when the device is operating normally.