Automatic screen printing plate detection device

Abstract

The utility model relates to the field of screen printing technology, and particularly discloses an automatic screen printing plate detection device which comprises a workbench, a camera and a displayer electrically connected with the camera. The inspection bench slides on the workbench in the Y direction, and the Y driving assembly drives the inspection bench to slide; a cross beam is fixed above the inspection bench on the workbench, the camera is slidably mounted on the cross beam in the X direction, and an X driving assembly for driving the camera to slide is mounted on the cross beam. The inspection bench and the camera are movably arranged on the workbench, the Y driving assembly and the X driving assembly respectively drive the inspection bench and the camera to move, the moving speed is controllable and uniform, and inspection of workers can be facilitated.

Description

Technical Field

[0001] The present application relates to the field of screen printing technology, and in particular to an automated screen printing detection device. Background Art

[0002] Silk screen printing, also known as screen printing, is a printing technology that uses a special mesh structure (screen) to transfer ink or other printing materials to various substrates.

[0003] The basic process of screen printing includes: making the silk screen, using silk screen material (usually nylon, silk or stainless steel wire) to make a mesh structure, and the mesh size can be adjusted as needed; making the screen, making the designed pattern or text into the screen, and then fixing it on the silk screen, and the part not covered by the pattern will allow ink to pass through; inking, using a scraper or roller to evenly apply ink to the silk screen; printing, the ink passes through the mesh of the silk screen and is transferred to the substrate according to the pattern of the template; drying, the substrate needs to be dried after printing to ensure that the ink is fixed.

[0004] In the process of making the screen, laser cutting technology is required to cut the preset pattern from the equally spaced rectangular steel wire screen. After laser cutting, steel wire residue or end offset will appear at the end of the steel wire. Due to the high density of the screen, the quality of the screen after cutting cannot be inspected by the naked eye. Therefore, it is necessary to use an inspection device to inspect defective products after the screen is cut.

[0005] In related technologies, such as the Chinese utility model patent with patent number CN219065259U, a device for inspecting screen laser wire is disclosed. When in use, the prepared screen is placed on an upper movable platform, and then the screen is projected onto a display through a microscope. The staff observes the quality of the screen through the display, and then moves the upper and lower movable platforms to observe different parts of the screen.

[0006] In actual use, it was found that since the projection range of the microscope was very small, if the moving speed was slightly faster during the movement of the upper and lower moving platforms, some uninspected steel wires would jump out of the range of the microscope display, resulting in missed detection. Summary of the Invention

[0007] In order to improve the inspection efficiency and inspection accuracy of screens, the present application provides an automated screen inspection device.

[0008] The present application provides an automated screen detection device that adopts the following technical solutions:

[0009] An automated screen inspection device comprises a workbench, a camera, and a display electrically connected to the camera. The device comprises an inspection platform sliding in the Y direction on the workbench, and a Y drive assembly driving the inspection platform to slide. A crossbeam is fixed to the workbench above the inspection platform, the camera is mounted on the crossbeam sliding in the X direction, and an X drive assembly for driving the camera to slide is mounted on the crossbeam.

[0010] By adopting the above technical solution, the inspection table and the camera are both slidably mounted on the workbench. During the inspection process, the screen is placed on the inspection table, and then the camera and the inspection table are driven by the X-drive assembly and the Y-drive assembly, and they move slowly in coordination with each other, making it convenient for workers to observe the screen condition on the display. The driving speed of the X-drive assembly and the Y-drive assembly can be controlled by the program, and the speed is balanced, which facilitates the inspection of the workers and can effectively improve the inspection accuracy.

[0011] Optionally, the Y drive assembly is configured as a Y linear module fixed on the workbench along the Y direction, and the inspection table is fixed on a slide of the Y linear module.

[0012] By adopting the above technical solution, the Y drive component is set as a Y linear module. The linear module is easy to obtain, low in cost, and easy to use.

[0013] Optionally, a slider and a guide rail are installed on the crossbeam along the moving direction of the camera, a mounting seat is fixed on the slider, and the camera is mounted on the mounting seat; the X drive assembly includes a screw rod, a screw rod nut and an X drive motor that drives the screw rod, the screw rod nut is fixed on the mounting seat, the screw rod is parallel to the X direction and is rotatably mounted on the crossbeam at both ends, and the screw rod passes through the screw rod nut and is threadedly engaged with each other.

[0014] By adopting the above technical solution, the camera slides along the direction of the guide rail through the slider, which can effectively improve the installation accuracy of the camera; when the camera needs to be moved, the X-drive motor drives the screw to rotate, and the screw can drive the camera to move through the screw nut, which has a simple and reliable structure.

[0015] Optionally, a Z linear module is installed on the mounting seat along the Z direction, and the camera is installed on the slide of the Z linear module.

[0016] By adopting the above technical solution, a Z linear module is installed on the mounting base. When inspecting different screens, the heights of the screens are different, and the camera needs to focus according to the screen height; however, the focusing range of the camera is limited. The Z linear module can be used to drive the camera to move up and down, thereby improving the camera's focusing accuracy.

[0017] Optionally, accordion protective covers are installed on the workbench and the crossbeam at positions corresponding to the Y drive assembly and the X drive assembly.

[0018] By adopting the above technical solution, the accordion protective cover can protect the Y drive assembly and the X drive assembly, and can also protect the staff to prevent the Y drive assembly and the X drive assembly from pinching the staff during use.

[0019] Optionally, a light-transmitting hole is opened in the middle of the inspection table, a soft light is installed in the light-transmitting hole, and a transparent table top is fixed on the upper side of the inspection table.

[0020] By adopting the above technical solution, when in use, the screen is placed on the table, and the soft light will illuminate the screen, which is convenient for camera projection.

[0021] Optionally, the camera is configured to have a fill light.

[0022] By adopting the above technical solution, the camera is equipped with a fill light function. During the inspection process, the camera can automatically fill light to improve the inspection accuracy.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The inspection table and camera are both slidably mounted on the workbench. During the inspection process, the screen is placed on the inspection table, and then the camera and inspection table are driven by the X-drive assembly and the Y-drive assembly to move slowly in coordination with each other, making it convenient for the staff to observe the screen condition on the monitor. The driving speed of the X-drive assembly and the Y-drive assembly can be controlled by the program, and the speed is balanced, which is convenient for the staff to inspect and can effectively improve the inspection accuracy.

[0025] 2. By installing a Z linear module on the mounting base, when inspecting different screens, the screen heights are different, and the camera needs to focus according to the screen height; however, the camera's focusing range is limited. The Z linear module can be used to drive the camera up and down, thereby improving the camera's focusing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 It is a structural diagram highlighting the Y drive component and the X drive component;

[0028] Figure 3 yes Figure 2 Magnified view of area A in the middle;

[0029] Figure 4 yes Figure 2Magnified view of area B.

[0030] Figure numerals: 1. workbench; 11. Y linear module; 2. camera; 3. display; 4. inspection table; 41. light hole; 42. table; 43. soft light; 5. crossbeam; 51. X drive assembly; 511. lead screw; 512. lead screw nut; 513. X drive motor; 52. slider; 53. guide rail; 54. mounting seat; 55. Z linear module; 6. accordion protective cover. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application discloses an automatic screen detection device, referring to Figure 1 and Figure 2 , comprising a workbench 1, a camera 2, a display 3, and an inspection table 4. The camera 2 is electrically connected to the display 3. A horizontal beam 5 is fixed above the workbench 1. The camera 2 is mounted on the beam 5 so as to slide along the X direction, i.e., along the length of the beam 5. An X-drive assembly 51 is mounted on the beam 5 to drive the movement of the camera 2. The inspection table 4 is mounted on the workbench 1 so as to slide along the Y direction. The workbench 1 is also mounted on the Y-drive assembly to drive the movement of the inspection table 4.

[0033] The Y drive assembly is configured as a Y linear module 11 fixed on the workbench 1 along the Y direction, and the inspection table 4 is fixed on the slide of the Y linear module 11. The inspection table 4 is driven by the Y linear module 11 to slide back and forth along the Y direction.

[0034] Reference Figure 2 and Figure 3 The X-drive assembly 51 includes a screw 511, a screw nut 512, and an X-drive motor 513 that drives the screw 511. The screw 511 is mounted on the crossbeam 5 parallel to the length of the crossbeam 5. Both ends of the screw 511 are rotatably mounted on the crossbeam 5 via bearing blocks. The screw nut 512 is mounted on the screw 511 and threadedly engages with the screw 511. The X-drive motor 513 is fixed to the crossbeam 5, and the rotating shaft of the X-drive motor 513 is connected to the screw 511. A guide rail 53 is fixed to the crossbeam 5 on either side of the screw 511. A slider 52 is slidably mounted on the guide rail 53. A mounting base 54 is fixed to the slider 52 and the screw nut 512. The camera 2 is fixed to the mounting base 54. When the X-drive motor 513 rotates, it drives the screw 511 to rotate. The screw 511 drives the camera 2 to slide back and forth along the X direction through the screw nut 512.

[0035] A Z linear module 55 is vertically mounted on the mounting base 54. The camera 2 is mounted on a slide on the Z linear module 55. The Z linear module 55 drives the camera 2 to move up and down, making it easier for the camera 2 to focus. The camera 2 has a light-off function, and can automatically fill in the light as needed during the focusing process.

[0036] Organ protective covers 6 are installed on the workbench 1 and the crossbeam 5 at positions corresponding to the X-drive assembly 51 and the Y-drive assembly, which can protect the X-drive assembly 51 and the Y-drive assembly and also protect the staff.

[0037] Reference Figure 2 and Figure 4 A rectangular light hole 41 is provided in the center of the inspection table 4. A soft light 43 is installed in the light hole 41 on the inspection table 4. During the inspection process, the soft light 43 illuminates the screen. A transparent platen 42 is fixed to the side of the inspection table 4. During the inspection process, the screen is placed on the platen 42.

[0038] The embodiment of the present application discloses an automated screen inspection device according to the following principles: an inspection table 4 and a camera 2 are both slidably mounted on a workbench 1. During inspection, a screen is placed on the inspection table 4. The camera 2 and the inspection table 4 are then driven by an X-drive assembly 51 and a Y-drive assembly to move slowly in coordination with each other, thereby facilitating observation of the screen condition on a display 3 by a worker. The driving speeds of the X-drive assembly 51 and the Y-drive assembly can be controlled by a program, resulting in a balanced speed, facilitating inspection by the worker, and effectively improving inspection accuracy.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automated screen detection device, comprising a workbench (1), a camera (2), and a display (3) electrically connected to the camera (2), characterized in that: include: An inspection table (4) is provided on the workbench (1) and slides along the Y direction, and a Y drive assembly drives the inspection table (4) to slide; A crossbeam (5) is fixed on the workbench (1) above the inspection table (4); the camera (2) is mounted on the crossbeam (5) in a sliding manner along the X direction; and an X drive assembly (51) for driving the camera (2) to slide is mounted on the crossbeam (5).

2. The automatic screen detection device according to claim 1, characterized in that: The Y drive assembly is configured as a Y linear module (11) fixed on the workbench (1) along the Y direction, and the inspection table (4) is fixed on a slide of the Y linear module (11).

3. The automatic screen detection device according to claim 1, characterized in that: A slider (52) and a guide rail (53) are mounted on the crossbeam (5) along the moving direction of the camera (2); a mounting seat (54) is fixed on the slider (52); and the camera (2) is mounted on the mounting seat (54); the X-drive assembly (51) comprises a screw rod (511), a screw rod nut (512), and an X-drive motor (513) for driving the screw rod (511); the screw rod nut (512) is fixed on the mounting seat (54); the screw rod (511) is parallel to the X direction and is rotatably mounted on the crossbeam (5) at both ends; the screw rod (511) passes through the screw rod nut (512) and is threadably engaged with each other.

4. The automatic screen detection device according to claim 3, characterized in that: A Z linear module (55) is mounted on the mounting seat (54) along the Z direction, and the camera (2) is mounted on a slide of the Z linear module (55).

5. The automatic screen detection device according to claim 1, characterized in that: An accordion protective cover (6) is installed on the workbench (1) and the crossbeam (5) at positions corresponding to the Y drive assembly and the X drive assembly (51).

6. The automatic screen detection device according to claim 1, characterized in that: A light-transmitting hole (41) is provided in the middle of the inspection table (4), a soft light (43) is installed in the light-transmitting hole (41) of the inspection table (4), and a transparent tabletop (42) is fixed on the upper side of the inspection table (4).

7. The automatic screen detection device according to claim 1, characterized in that: The camera (2) is configured to have a fill light.

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