Movable visual alignment bedplate

Abstract

The utility model discloses a movable visual alignment bedplate which comprises a bedplate body, a movable visual assembly and a fixed visual assembly are arranged below the bedplate body, the movable visual assembly and the fixed visual assembly are oppositely arranged at the opposite corners of the bedplate body, the movable visual assembly is in sliding connection with the bedplate body through a sliding assembly, and the fixed visual assembly is in sliding connection with the bedplate body. The platen body is provided with a first light hole corresponding to the fixed visual assembly, and the platen body is sequentially provided with a plurality of second light holes corresponding to the sliding direction of the movable visual assembly. According to the movable visual alignment bedplate provided by the utility model, the visual assembly is arranged below the bedplate body, and alignment can be adjusted, so that the movable visual alignment bedplate is adaptive to alignment calibration when different screen printing plates are used for printing.

Description

Technical Field

[0001] This utility model relates to the field of automatic printing equipment technology, and in particular to a movable visual alignment table. Background Technology

[0002] In the automated production process of an oval printing machine, precise alignment between the screen and the print head is fundamental to ensuring the printing quality of the pattern. Therefore, it is necessary to align the screen and the printing plate before printing begins to ensure that the pattern on the screen can be accurately printed onto the substrate on the printing plate during subsequent printing. Existing technologies typically use fixed vision components to acquire images of the screen's marked points and use algorithms to calculate the relative positional deviation between the print head and the screen, thereby completing the calibration. However, this solution has the following technical limitations in practical applications: the vision component and the print head are rigidly connected, and its installation height, angle, and horizontal position cannot be dynamically adjusted according to the screen size. When switching between different screen sizes, the field of view and focal length of the vision component cannot adapt to the changes in the marked point position, resulting in fluctuations in image acquisition accuracy and indirectly causing alignment errors. Especially in complex printing station layouts, the equipment layout needs to be repeatedly adjusted to avoid interference, reducing the flexibility of the production line. Utility Model Content

[0003] The purpose of this utility model is to provide a movable vision alignment platform, which sets the vision components below the platform body and allows for adjustment and alignment to adapt to different screen printing plates for alignment calibration during printing.

[0004] The technical solution adopted by the movable visual alignment platform disclosed in this utility model is:

[0005] A movable vision alignment platform includes a platform body, a movable vision component and a fixed vision component disposed below the platform body, the movable vision component and the fixed vision component being disposed opposite each other at diagonal positions of the platform body, the movable vision component being slidably connected to the platform body via a sliding component, the platform body having a first light-transmitting hole corresponding to the fixed vision component, and the platform body having a plurality of second light-transmitting holes sequentially arranged corresponding to the sliding direction of the movable vision component.

[0006] As a preferred embodiment, the moving component includes a lead screw, a motor, and a fixed base. The fixed base is fixed to the bottom of the platform body. One end of the lead screw is rotatably connected to the fixed base. The motor is fixed to one side of the platform body below the fixed base. The other end of the lead screw is fixedly connected to the motor. A nut seat is sleeved on the lead screw. The nut seat is fixedly connected to the vision component through a slider. A slide rail is provided on one side of the lead screw, and the slider is slidably connected to the slide rail.

[0007] As a preferred embodiment, the fixed vision component and the mobile vision component have the same structure. The mobile vision component includes a camera, a lens, and a corner coaxial light source. The camera, lens, and corner coaxial light source are all coaxially fixed, and the lens is fixedly connected to the slider through a connecting bracket.

[0008] As a preferred embodiment, a tension component is also fixedly provided under the platform body. One end of the tension component is fixedly connected to the connecting frame, and the tension component is used to apply additional tension to the vision component.

[0009] As a preferred embodiment, the tension component may be a tension cable box or a spring.

[0010] As a preferred embodiment, the second light-transmitting hole has an elliptical structure, and a plurality of the second light-transmitting holes are arranged vertically at intervals on the surface of the platform body.

[0011] As a preferred embodiment, several of the second light-transmitting holes can be connected to form a light-transmitting channel.

[0012] As a preferred embodiment, the mobile vision component and the fixed vision component are arranged opposite each other on the diagonal of the platform body, or on the same axis or the same longitudinal line on the surface of the platform body.

[0013] The beneficial effects of the movable vision alignment platform disclosed in this utility model are as follows: the movable vision component is slidably connected to the platform body through a sliding component, and combined with a number of second light-transmitting holes distributed along the sliding direction, the position of the vision component is dynamically adjusted according to the screen size, ensuring accurate coverage of the alignment reference points of screens of different specifications; the fixed vision component and the movable vision component are diagonally arranged, and through the coordinated positioning of the first light-transmitting hole and the second light-transmitting hole, the visual detection range is expanded while maintaining the compactness of the platform body structure, effectively solving the problem of insufficient alignment adaptability of traditional fixed vision components. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a movable visual alignment platform according to the present invention.

[0015] Figure 2 This is a schematic diagram of the back structure of a movable visual alignment platform according to the present invention.

[0016] Figure 3 This is a schematic diagram of the sliding component structure of a movable visual alignment platform according to this utility model. Detailed Implementation

[0017] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0018] Please refer to Figure 1 and Figure 2A movable visual alignment platform includes a platform body 10, a movable visual component 20 and a fixed visual component 30 disposed below the platform body 10. The movable visual component 20 and the fixed visual component 30 are disposed opposite each other at diagonal positions of the platform body 10. The movable visual component 20 is slidably connected to the platform body 10 via a sliding component 40. The platform body 10 has a first light-transmitting hole 11 corresponding to the fixed visual component 30. The platform body 10 has a plurality of second light-transmitting holes 12 sequentially arranged in the direction in which the movable visual component 20 slides.

[0019] The second light-transmitting hole 12 has an elliptical structure, which allows for fine movement and adjustment within one second light-transmitting hole 12, and several second light-transmitting holes 12 are arranged vertically at intervals on the surface of the platform body 10.

[0020] Several second light-transmitting holes 12 can be connected to form a light-transmitting channel, thereby achieving better calibration and alignment.

[0021] The moving vision component 20 and the fixed vision component 30 are arranged opposite each other on the diagonal of the screen body 10, or on the same axis or the same longitudinal line on the surface of the screen body 10. That is, the moving vision component 20 and the fixed vision component 30 are arranged diagonally or on the same straight line. The arrangement is selected according to the marking points on the screen. In this embodiment, the diagonal arrangement is used. Other arrangement methods do not affect the movement of the moving vision component 20.

[0022] The mobile vision component 20 is slidably connected to the table body 10 via the sliding component 40. Combined with a number of second light-transmitting holes 12 distributed along the sliding direction, the position of the mobile vision component 20 is dynamically adjusted according to the screen size, ensuring accurate coverage of the alignment reference points for screens of different specifications. The fixed vision component 30 is diagonally arranged with the mobile vision component 20. Through the coordinated positioning of the first light-transmitting hole 11 and the second light-transmitting hole 12, the visual inspection range is expanded while maintaining the compact structure of the table body 10, effectively solving the problem of insufficient alignment adaptability of traditional fixed vision components.

[0023] Please refer to Figure 3 In the above scheme, the moving component includes a lead screw 41, a motor 42, and a fixed base 43. The fixed base 43 is fixed to the bottom of the platform body 10. One end of the lead screw 41 is rotatably connected to the fixed base 43. The motor 42 is fixed to one side of the platform body 10 below the fixed base 43. The other end of the lead screw 41 is fixedly connected to the motor 42. A nut seat 47 is sleeved on the lead screw 41. The nut seat 47 is fixedly connected to the vision component through a slider 44. A slide rail 45 is provided on one side of the lead screw 41. The slider 44 is slidably connected to the slide rail 45.

[0024] The motor 42 located below the platform body 10 drives the lead screw 41 to rotate. The lead screw 41 is rotatably connected to the fixed base 43 to form a fulcrum. The nut seat 47 and the slider 44 are restricted by the slide rail 45. Thus, the rotational motion of the lead screw 41 is converted into linear displacement through the nut seat 47, driving the slider 44 and the vision component to slide axially along the slide rail 45. The cooperation constraint between the slide rail 45 and the slider 44 ensures that the movement trajectory is accurate and without deviation. This structure allows the vision component to dynamically adjust its position to accurately cover the alignment reference points of different screens, achieving rapid and high-precision adaptation to multi-specification inspection needs.

[0025] The fixed vision component 30 and the moving vision component 20 have the same structure. The moving vision component 20 includes a camera 21, a lens 22 and a corner coaxial light source 23. The camera 21, lens 22 and corner coaxial light source 23 are all fixedly set coaxially. The lens 22 is fixedly connected to the slider 44 through the connecting bracket 46. The corner coaxial light source 23 performs 45-degree refraction imaging. When the camera 21 is set parallel to the bottom of the platform body 10, the second light-transmitting hole 12 is used to capture the image above the platform body 10.

[0026] Because there is a rotational clearance between the lead screw 41 and the nut seat 47, the nut seat 47 and the lead screw 41 do not fit tightly together, resulting in a small amount of displacement. Since the table body 10 needs to move with the oval printing machine during use, in order to prevent the vision component under the table body 10 from shifting from its pre-positioned hole during movement, a tension component 50 is also fixedly installed under the table body 10. One end of the tension component 50 is fixedly connected to the connecting frame 46. The tension component 50 is used to apply additional tension to the vision component. Through the tension component 50, the nut seat 47 always has an external force, which makes the internal thread of the nut seat 47 and the external thread on the surface of the lead screw 41 fit tightly together on the side near the tension component 50. That is, when the nut seat 47 is moved and adjusted, it also needs to overcome the force of the tension component 50 to move, thereby avoiding the alignment error caused by the rotational clearance reserved between the lead screw 41 and the nut seat 47.

[0027] The tension assembly 50 can be a tension box or a spring. One end of the tension box or spring is fixed to the side of the platform body 10 away from the vision assembly, and the other end is fixedly connected to the connecting bracket 46 where the vision assembly is fixed. It is also necessary to ensure that the vision assembly can be moved by the nut seat 47 when the lead screw 41 rotates.

[0028] This invention provides a movable vision alignment platform. The movable vision component is slidably connected to the platform body via a sliding component. Combined with several second light-transmitting holes distributed along the sliding direction, the position of the vision component can be dynamically adjusted according to the screen size, ensuring accurate coverage of the alignment reference points for screens of different specifications. The fixed vision component and the movable vision component are diagonally arranged. Through the coordinated positioning of the first light-transmitting hole and the second light-transmitting hole, the visual inspection range is expanded while maintaining the compactness of the platform body structure, effectively solving the problem of insufficient alignment adaptability of traditional fixed vision components.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A movable visual alignment platform, characterized in that, The device includes a table body, a movable vision component and a fixed vision component located below the table body, the movable vision component and the fixed vision component being disposed opposite each other at both ends of the table body, the movable vision component being slidably connected to the table body via a sliding component, the table body having a first light-transmitting hole corresponding to the fixed vision component, and the table body having a plurality of second light-transmitting holes sequentially arranged in the direction in which the movable vision component slides.

2. The movable visual alignment platform as described in claim 1, characterized in that, The mobile vision component includes a lead screw, a motor, and a fixed base. The fixed base is fixed to the bottom of the platform body. One end of the lead screw is rotatably connected to the fixed base. The motor is fixed to one side of the platform body below the fixed base. The other end of the lead screw is fixedly connected to the motor. A nut seat is sleeved on the lead screw. The nut seat is fixedly connected to the vision component through a slider. A slide rail is provided on one side of the lead screw, and the slider is slidably connected to the slide rail.

3. A movable visual alignment platform as described in claim 2, characterized in that, The fixed vision component and the mobile vision component have the same structure. The mobile vision component includes a camera, a lens, and a corner coaxial light source. The camera, lens, and corner coaxial light source are all fixedly arranged coaxially, and the lens is fixedly connected to the slider through a connecting bracket.

4. A movable visual alignment platform as described in claim 2, characterized in that, A tension component is also fixedly installed below the platform body. One end of the tension component is fixedly connected to the connecting frame. The tension component is used to apply additional tension to the vision component.

5. A movable visual alignment platform as described in claim 4, characterized in that, The tension component can be a tension cable box or a spring.

6. A movable visual alignment platform as described in any one of claims 1-5, characterized in that, The second light-transmitting hole has an elliptical structure, and several of the second light-transmitting holes are arranged vertically at intervals on the surface of the platform body.

7. A movable visual alignment platform as described in any one of claims 1-5, characterized in that, Several of the second light-transmitting holes can be connected to form a light-transmitting channel.

8. A movable visual alignment platform as described in claim 1, characterized in that, The mobile vision component and the fixed vision component are arranged opposite each other on the diagonal of the platform body, or on the same axis or the same longitudinal line on the surface of the platform body.

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