Image acquisition device in printing industry
By setting up a camera adjustment mechanism in the printed image acquisition device and using a gear motor to accurately control the lens parameters, the problem of traditional manual adjustment is solved, and efficient and accurate image acquisition and adaptability enhancement is achieved.
Patent Information
- Application Number
- CN202421818581.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Traditional printed image acquisition devices require manual adjustment of the focal length and aperture of the camera lens, which is inefficient and easy to introduce human error, affecting the accuracy of the monitoring results.
An image acquisition device including a housing and a camera lens is designed. By setting up a camera adjustment mechanism, the focus ring, zoom ring and aperture adjustment ring can be accurately controlled by a gear motor to achieve rapid and accurate adjustment of the camera lens.
It improves the accuracy and efficiency of image acquisition, reduces the error of manual operation, enhances the adaptability and flexibility of the device, improves production efficiency and saves time and cost.
Smart Images
Figure CN222839740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of image monitoring in the printing industry, in particular to a variable structure of an image acquisition device for online printing quality observation. Background Art
[0002] In the printing industry, monitoring the quality of printed images is crucial. Printing image acquisition devices, also known as still picture systems, are widely used in gravure printing machines, flexographic printing machines, offset printing machines and other printing equipment to monitor the image quality of the printing process in real time. The system captures high-speed images during the printing process and converts them into still images, allowing operators to clearly and accurately observe the quality of printed images, detect and correct printing defects in a timely manner, thereby improving production efficiency and printing yield. Traditional printing image acquisition devices usually use a camera body with a fixed focal length, and operators need to rely on manually adjusting the focal length and aperture of the camera lens to adapt to different printing materials and printing requirements. However, this manual adjustment method is not only inefficient, but also prone to introducing human errors, affecting the accuracy of the monitoring results. Utility Model Content
[0003] The purpose of the utility model is to provide an image acquisition device for the printing industry. The utility model can realize rapid and accurate adjustment of the camera lens with high efficiency.
[0004] The technical solution of the utility model is as follows: an image acquisition device for the printing industry, comprising a shell and a camera lens, wherein a printing roller is provided on the front side of an inner cavity of the shell; a focus ring, a zoom ring and an aperture adjustment ring are provided on the camera lens, and a transmission interface is connected to the rear end of the camera lens; a pair of columns are provided on the rear side of the inner cavity of the shell, a slide rail is provided between the columns, a camera adjustment mechanism is slidably connected to the slide rail, and the camera adjustment mechanism is respectively connected to the focus ring, the zoom ring and the aperture adjustment ring.
[0005] In the aforementioned printing industry image acquisition device, a fixing seat is provided at the lower end of the column, and the fixing seat is fixedly connected to the inner cavity of the shell by bolts; a connecting plate is rotatably provided at the upper end of the column; and both ends of the slide rail are fixedly connected to the connecting plate respectively.
[0006] In the aforementioned printing industry image acquisition device, the connecting plate is an L-shaped plate, and the column is provided with a first limit rod and a second limit rod, the first limit rod is passed through the connecting plate and fixed by a nut, the outer circle of the first limit rod is provided with an arc-shaped slide groove, and the second limit rod is passed through the arc-shaped slide groove and fixed by a nut.
[0007] In the aforementioned printing industry image acquisition device, the camera adjustment mechanism includes a camera cover mounted on a slide rail, a first chamber is provided at the bottom of the camera cover, a load-bearing plate extending from the camera cover is provided at the front and rear sides of the first chamber, a motor mounting plate is fixed on the load-bearing plate, a plurality of pulleys slidingly matched with the side of the slide rail are fixed on the motor mounting plate; a tooth groove is provided at the bottom of the slide rail, a first gear motor is fixed at the bottom of the motor mounting plate, and the gear shaft of the first gear motor is meshed with the tooth groove.
[0008] In the aforementioned printing industry image acquisition device, a second chamber is provided on the top of the camera cover, a base plate is provided at the bottom of the second chamber, a drive mounting plate is provided on the rear side of the base plate, a first driver is provided on the drive mounting plate, and a second driver and a third driver are provided on both sides of the drive mounting plate; a first motor fixing plate is provided on the front side of the base plate.
[0009] In the aforementioned printing industry image acquisition device, a second gear motor is fixed on the first motor fixing plate, the second gear motor is electrically connected to the first driver, and the gear shaft of the second gear motor passes through the first motor fixing plate and engages with the focus ring.
[0010] In the aforementioned printing industry image acquisition device, a second motor fixing plate is provided on the front side of the drive mounting plate, and a third gear motor and a fourth gear motor are fixed on the second motor fixing plate. The third gear motor and the fourth gear motor are electrically connected to the second driver and the third driver respectively, and the gear shafts of the third gear motor and the fourth gear motor pass through the second motor fixing plate and engage with the zoom ring and the aperture ring respectively.
[0011] In the aforementioned printing industry image acquisition device, the camera lens is inserted into the first motor fixing plate; a boss located below the drive mounting plate is provided on the rear side of the base plate, the transmission interface is located above the boss, and the third gear motor and the fourth gear motor are located on both sides of the boss.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The utility model sets a camera adjustment mechanism so that the focus ring, zoom ring and aperture adjustment ring can be precisely controlled by a gear motor, thereby ensuring high definition and accuracy of image acquisition. The accuracy and efficiency of image acquisition are improved, and the error of manual operation is reduced. The production efficiency is improved, and the time cost is saved; and the combination of the zoom ring and the gear motor enables the camera lens to automatically adjust the focal length, adapt to the image acquisition requirements of printed products of different sizes and distances, and enhance the adaptability and flexibility of the device. The utility model makes the entire image acquisition device more compact, easy to install and move, and also improves the stability and durability of the equipment through the setting of the column and slide rail structure in the shell and the camera adjustment mechanism. The overall structure of the utility model embodies a high degree of automation, reduces the labor intensity of the operator, and improves the consistency and reliability of the operation. In addition, the utility model combines the slide rail and the camera adjustment mechanism so that the camera cover can slide freely on the slide rail, and at the same time, through the drive of the first gear motor, a smooth and precise position adjustment is achieved to adapt to printing rollers of different sizes and positions. The utility model configures the second gear motor, the third gear motor and the fourth gear motor to respectively correspond to focus, zoom and aperture adjustment. This split drive design not only improves the convenience of operation, but also improves the overall work efficiency. The utility model can accurately control the rotation angle and speed of the small motor according to preset parameters or external instructions through the built-in control module of the driver, thereby realizing accurate adjustment of various parameters of the lens. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is the front view of the utility model;
[0015] Figure 2 It is a schematic diagram of the slide rail of the utility model;
[0016] Figure 3 It is a partial cross-sectional view of the utility model;
[0017] Figure 4 It is a schematic diagram of the camera adjustment mechanism of the utility model;
[0018] Figure 5 It is a rear side view of the camera adjustment mechanism of the utility model.
[0019] The markings in the accompanying drawings are: 1, shell; 2, camera lens; 3, printing roller; 4, focus ring; 5, zoom ring; 6, aperture adjustment ring; 7, transmission interface; 8, column; 9, slide rail; 10, camera adjustment mechanism; 11, fixed seat; 12, connecting plate; 13, first limit rod; 14, arc slide groove; 15, camera cover; 16, first chamber; 17, pulley; 18, tooth groove; 19, first gear motor; 20, second chamber; 21, bottom plate; 22, drive mounting plate; 23, first driver; 24, second driver; 25, third driver; 26, first motor fixing plate; 27, second gear motor; 28, second motor fixing plate; 29, third gear motor; 30, fourth gear motor; 31, boss; 32, second limit rod; 33, load-bearing plate; 34, motor mounting plate. DETAILED DESCRIPTION
[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0021] Embodiment: An image acquisition device for the printing industry, comprising: Figure 1-5 As shown, it includes a housing 1 and a camera lens 2. The housing 1 serves as the supporting structure of the entire system, and a plurality of universal wheels are provided at the bottom thereof to facilitate the movement of the device. Figure 1 As shown in FIG. 1 , a printing cylinder 3 is provided at the front side of the inner cavity of the housing 1, and a focus ring 4, a zoom ring 5 and an aperture adjustment ring 6 are provided on the camera lens 2, which are responsible for adjusting the focus distance, focal length range and aperture size of the lens respectively. A transmission interface 7 is connected to the rear end of the camera lens 2. A pair of columns 8 are provided at the rear side of the inner cavity of the housing 1, as shown in FIG. Figure 2 As shown, a slide rail 9 is provided between the columns 8, and a camera adjustment mechanism 10 is slidably connected to the slide rail 9, and the camera adjustment mechanism 10 is respectively connected to the focus ring 4, the zoom ring 5 and the aperture adjustment ring 6. A fixing seat 11 is provided at the lower end of the column 8, and the fixing seat 11 is fixedly connected to the inner cavity of the housing 1 by bolts. A connecting plate 12 is rotatably provided at the upper end of the column 8, and the connecting plate 12 is an L-shaped plate. A first limiting rod 13 and a second limiting rod 32 are provided on the column 8, and the first limiting rod 13 is penetrated through the connecting plate 12 and fixed by a nut, and an arc-shaped slide groove 14 is provided on the outer ring of the first limiting rod 13, and the second limiting rod 32 is penetrated through the arc-shaped slide groove 14 and fixed by a nut. The design of the arc-shaped slide groove 14 allows the second limiting rod 32 to slide inside it, thereby realizing the adjustment of the angle of the slide rail 9 and the camera adjustment mechanism 10. The two ends of the slide rail 9 are respectively fixedly connected to the connecting plate 12. The connection between the column 8, the connecting plate 12 and the slide rail 9 not only provides a stable support for the camera lens 2, but also allows the lens to be fine-tuned within a certain range to adapt to different shooting angles and positions. Figure 3As shown, the camera adjustment mechanism 10 includes a camera housing 15 sleeved on the slide rail, a first chamber 16 is provided at the bottom of the camera housing 15, a load-bearing plate 33 extending from the camera housing 15 is provided at the front and rear sides of the first chamber 16, a motor mounting plate 34 is fixed on the load-bearing plate 33, and four groups of pulleys 17 are fixed at the four corners of the motor mounting plate 34 to slide with the side of the slide rail 9 to ensure the smooth movement of the camera adjustment mechanism 10. A tooth groove 18 is provided at the bottom of the slide rail 9, and a first gear motor 19 is fixed at the bottom of the motor mounting plate 34. The gear shaft of the first gear motor 19 meshes with the tooth groove 18, and the precise displacement of the camera housing 15 on the slide rail 9 is achieved by the drive of the motor. The camera adjustment mechanism 10 is connected to the camera housing 15 through the slide rail 9. The design of the slide rail 9 allows the camera housing 15 to slide smoothly in the horizontal direction, and the tooth groove 18 at the bottom of the slide rail 9 meshes with the gear shaft of the first gear motor 19, providing precise position control. The top of the camera housing 15 is provided with a second chamber 20, and a bottom plate 21 is fixed to the bottom of the second chamber 20. Figure 4-5As shown, a driving mounting plate 22 is provided at the rear side of the base plate 21, a first driver 23 is provided on the driving mounting plate 22, and a second driver 24 and a third driver 25 are provided on both sides of the driving mounting plate 22. The control module built into the driver can accurately control the rotation angle and speed of the small motor according to preset parameters or external instructions, thereby realizing accurate adjustment of various parameters of the lens. A first motor fixing plate 26 is provided at the front side of the base plate 21, on which a second gear motor 27 is fixed. The second gear motor 27 is electrically connected to the first driver 23, and its gear shaft passes through the first motor fixing plate 26 and meshes with the focus ring 4 to realize automatic adjustment of the focus function. A second motor fixing plate is provided at the front side of the driving mounting plate, and a third gear motor 29 and a fourth gear motor 30 are fixed on the second motor fixing plate, and the third gear motor 29 and the fourth gear motor 30 are electrically connected to the second driver 24 and the third driver 25 respectively, and the gear shafts of the third gear motor 29 and the fourth gear motor 30 pass through the second motor fixing plate and mesh with the zoom ring 5 and the aperture ring respectively to realize automatic adjustment of zoom and aperture. The camera lens 2 is inserted into the first motor fixing plate 26. A boss 31 is provided on the rear side of the bottom plate 21 below the drive mounting plate 22, and the transmission interface 7 is located above the boss 31, which is used to connect the camera lens 2 with external equipment to realize signal transmission. The third gear motor 29 and the fourth gear motor 30 are located on both sides of the boss 31, with a compact layout, which is convenient for integration and maintenance. The device is provided with a camera adjustment mechanism 10, so that the focus ring 4, the zoom ring 5 and the aperture adjustment ring 6 can be accurately controlled by the gear motor to ensure high definition and accuracy of image acquisition. The accuracy and efficiency of image acquisition are improved, and the error of manual operation is reduced. The production efficiency is improved and the time cost is saved; and the combination of the zoom ring 5 and the gear motor enables the camera lens 2 to automatically adjust the focal length to meet the image acquisition requirements of printed products of different sizes and distances, and enhances the adaptability and flexibility of the device. The device is provided with the structure of the column 8 and the slide rail 9 in the housing 1, and the camera adjustment mechanism 10, so that the entire image acquisition device is more compact, easy to install and move, and the stability and durability of the device are also improved. The overall structure of the device embodies a high degree of automation, reduces the labor intensity of operators, and improves the consistency and reliability of operation. In addition, the device combines the slide rail 9 and the camera adjustment mechanism 10, so that the camera cover 15 can slide freely on the slide rail 9, and at the same time, through the drive of the first gear motor 19, a smooth and accurate position adjustment is achieved to adapt to printing rollers 3 of different sizes and positions. The device is configured with the second gear motor 27, the third gear motor 29 and the fourth gear motor 30, which correspond to focus, zoom and aperture adjustment respectively. This split drive design not only improves the convenience of operation, but also improves the overall work efficiency. Through the built-in control module of the driver, the device can accurately control the rotation angle and speed of the small motor according to preset parameters or external instructions, thereby realizing accurate adjustment of various parameters of the lens.
[0022] Working process
[0023] The operator first starts the system and initializes the camera adjustment mechanism 10 through the control system to ensure that all components are in the correct initial position. According to the shooting requirements, the operator inputs the required focus distance, focal range and aperture size through the control system. The control system converts these instructions into electrical signals and sends them to the corresponding driver, which controls the gear motor to operate. After receiving the instructions, the gear motor starts working and drives the camera lens 2 to make corresponding adjustments by engaging with the focus ring 4, zoom ring 5 and aperture adjustment ring 6. During the whole process, the sliding of the camera cover 15 on the slide rail 9 and the internal action of the camera adjustment mechanism 10 are completed synchronously, ensuring the accuracy and consistency of the adjustment. After the adjustment is completed, the camera can shoot the product on the printing roller 3. After the shooting is completed, the transmission interface 7 transmits the image signal to the external device for recording or further processing.
[0024] In summary, the utility model can realize rapid and accurate adjustment of the camera lens with high efficiency.
Claims
1. An image acquisition device for the printing industry, comprising a housing (1) and a camera lens (2), wherein a printing roller (3) is provided on the front side of the inner cavity of the housing (1); a focus ring (4), a zoom ring (5) and an aperture adjustment ring (6) are provided on the camera lens (2), and a transmission interface (7) is connected to the rear end of the camera lens (2); the characteristics are: A pair of columns (8) are provided on the rear side of the inner cavity of the shell (1), a slide rail (9) is provided between the columns (8), the slide rail (9) is slidably connected to a camera adjustment mechanism (10), and the camera adjustment mechanism (10) is respectively connected to a focus ring (4), a zoom ring (5) and an aperture adjustment ring (6).
2. The image acquisition device for the printing industry according to claim 1, characterized in that: A fixing seat (11) is provided at the lower end of the column (8), and the fixing seat (11) is fixedly connected to the inner cavity of the shell (1) via bolts; a connecting plate (12) is rotatably provided at the upper end of the column (8); and both ends of the slide rail (9) are respectively fixedly connected to the connecting plate (12).
3. The image acquisition device for the printing industry according to claim 2, characterized in that: The connecting plate (12) is an L-shaped plate. The column (8) is provided with a first limiting rod (13) and a second limiting rod (32). The first limiting rod (13) is passed through the connecting plate (12) and fixed by a nut. The outer ring of the first limiting rod (13) is provided with an arc-shaped sliding groove (14). The second limiting rod (32) is passed through the arc-shaped sliding groove (14) and fixed by a nut.
4. The image acquisition device for the printing industry according to claim 1, characterized in that: The camera adjustment mechanism (10) comprises a camera housing (15) sleeved on the slide rail, a first chamber (16) being provided at the bottom of the camera housing (15), a load-bearing plate (33) extending from the camera housing (15) being provided at the front and rear sides of the first chamber (16), a motor mounting plate (34) being fixed on the load-bearing plate (33), a plurality of pulleys (17) being fixed on the motor mounting plate (34) and being slidably matched with the side of the slide rail (9); a tooth groove (18) being provided at the bottom of the slide rail (9), a first gear motor (19) being fixed at the bottom of the motor mounting plate (34), and a gear shaft of the first gear motor (19) being meshed with the tooth groove (18).
5. The image acquisition device for the printing industry according to claim 4, characterized in that: A second chamber (20) is provided at the top of the camera housing (15); a bottom plate (21) is provided at the bottom of the second chamber (20); a drive mounting plate (22) is provided at the rear side of the bottom plate (21); a first driver (23) is provided on the drive mounting plate (22); a second driver (24) and a third driver (25) are provided on both sides of the drive mounting plate (22); and a first motor fixing plate (26) is provided at the front side of the bottom plate (21).
6. The image acquisition device for the printing industry according to claim 5, characterized in that: A second gear motor (27) is fixed on the first motor fixing plate (26), the second gear motor (27) is electrically connected to the first driver (23), and a gear shaft of the second gear motor (27) passes through the first motor fixing plate (26) and meshes with the focus ring (4).
7. The image acquisition device for the printing industry according to claim 5, characterized in that: A second motor fixing plate (28) is provided on the front side of the driving mounting plate (22), a third gear motor (29) and a fourth gear motor (30) are fixed on the second motor fixing plate (28), the third gear motor (29) and the fourth gear motor (30) are electrically connected to the second driver (24) and the third driver (25) respectively, and the gear shafts of the third gear motor (29) and the fourth gear motor (30) respectively pass through the second motor fixing plate (28) and mesh with the zoom ring (5) and the aperture adjustment ring (6).
8. The image acquisition device for the printing industry according to claim 7, characterized in that: The camera lens (2) is inserted into the first motor fixing plate (26); a boss (31) is provided on the rear side of the base plate (21) and is located below the drive mounting plate (22); the transmission interface (7) is located above the boss (31); and the third gear motor (29) and the fourth gear motor (30) are located on both sides of the boss (31).